NAG Library
Advice on Replacement Calls for Withdrawn/Superseded Routines
The following list gives the names of routines that are suitable replacements for routines that have either been withdrawn or superseded since Mark 18.
The list indicates the minimum change necessary, but many of the replacement routines have additional flexibility and you may wish to take advantage of new features. It is strongly recommended that you consult the routine documents.
C05 – Roots of One or More Transcendental Equations
C05ADF
Withdrawn at Mark 25.
Replaced by
C05AYF.
Old: FUNCTION F(XX)
...
END FUNCTION F
...
CALL C05ADF(A,B,EPS,ETA,F,X,IFAIL)
New: FUNCTION F(XX,IUSER,RUSER)
...
INTEGER, INTENT(INOUT) :: IUSER(*)
REAL (KIND=nag_wp), INTENT(INOUT) :: RUSER(*)
...
END FUNCTION F
...
INTEGER :: IUSER(1)
REAL (KIND=nag_wp) :: RUSER(1)
...
CALL C05AYF(A,B,EPS,ETA,F,X,IUSER,RUSER,IFAIL)
C05AGF
Withdrawn at Mark 25.
Replaced by
C05AUF.
Old: FUNCTION F(XX)
...
END FUNCTION F
...
CALL C05AGF(X,H,EPS,ETA,F,A,B,IFAIL)
New: FUNCTION F(XX,IUSER,RUSER)
...
INTEGER, INTENT(INOUT) :: IUSER(*)
REAL (KIND=nag_wp), INTENT(INOUT) :: RUSER(*)
...
END FUNCTION F
...
INTEGER :: IUSER(1)
REAL (KIND=nag_wp) :: RUSER(1)
...
CALL C05AUF(X,H,EPS,ETA,F,A,B,IUSER,RUSER,IFAIL)
C05AJF
Withdrawn at Mark 25.
Replaced by
C05AWF.
Old: FUNCTION F(XX)
...
END FUNCTION F
...
CALL C05AJF(X,EPS,ETA,F,NFMAX,IFAIL)
New: FUNCTION F(XX,IUSER,RUSER)
...
INTEGER, INTENT(INOUT) :: IUSER(*)
REAL (KIND=nag_wp), INTENT(INOUT) :: RUSER(*)
...
END FUNCTION F
...
INTEGER :: IUSER(1)
REAL (KIND=nag_wp) :: RUSER(1)
...
CALL C05AWF(X,EPS,ETA,F,NFMAX,IUSER,RUSER,IFAIL)
C05NBF
Withdrawn at Mark 25.
Replaced by
C05QBF.
Old: SUBROUTINE FCN(N,X,FVEC,IFLAG)
...
END SUBROUTINE FCN
...
CALL C05NBF(FCN,N,X,FVEC,XTOL,WA,LWA,IFAIL)
New: SUBROUTINE FCN(N,X,FVEC,IUSER,RUSER,IFLAG)
...
INTEGER, INTENT(INOUT) :: IUSER(*)
REAL (KIND=nag_wp), INTENT(INOUT) :: RUSER(*)
...
END FUNCTION FCN
...
INTEGER :: IUSER(1)
REAL (KIND=nag_wp) :: RUSER(1)
...
CALL C05QBF(FCN,N,X,FVEC,XTOL,IUSER,RUSER,IFAIL)
C05NCF
Withdrawn at Mark 25.
Replaced by
C05QCF.
Old: SUBROUTINE FCN(N,X,FVEC,IFLAG)
...
END SUBROUTINE FCN
...
REAL (KIND=nag_wp) :: FJAC(LDFJAC,N)
...
CALL C05NCF(FCN,N,X,FVEC,XTOL,MAXFEV,ML,MU,EPSFCN,DIAG,MODE,FACTOR, &
NPRINT,NFEV,FJAC,LDFJAC,R,LR,QTF,W,IFAIL)
New: SUBROUTINE FCN(N,X,FVEC,IUSER,RUSER,IFLAG)
...
INTEGER, INTENT(INOUT) :: IUSER(*)
REAL (KIND=nag_wp), INTENT(INOUT) :: RUSER(*)
...
END FUNCTION FCN
...
INTEGER :: IUSER(1)
REAL (KIND=nag_wp) :: FJAC(N,N), RUSER(1)
...
CALL C05QCF(FCN,N,X,FVEC,XTOL,MAXFEV,ML,MU,EPSFCN,MODE,DIAG,FACTOR, &
NPRINT,NFEV,FJAC,R,QTF,IUSER,RUSER,IFAIL)
C05NDF
Withdrawn at Mark 25.
Replaced by
C05QDF.
Old: REAL (KIND=nag_wp) :: FJAC(LDFJAC,N)
...
CALL C05NDF(IREVCM,N,X,FVEC,XTOL,ML,MU,EPSFCN,DIAG,MODE,FACTOR, &
FJAC,LDFJAC,R,LR,QTF,W,IFAIL)
New: REAL (KIND=nag_wp) :: FJAC(N,N), RWSAV(4*N+20)
INTEGER :: IWSAV(17)
...
CALL C05QDF(IREVCM,N,X,FVEC,XTOL,ML,MU,EPSFCN,MODE,DIAG,FACTOR, &
FJAC,R,QTF,IWSAV,RWSAV,IFAIL)
C05PBF/C05PBA
Withdrawn at Mark 25.
Replaced by
C05RBF.
Old: SUBROUTINE FCN_C05PBF(N,X,FVEC,FJAC,LDFJAC,IFLAG)
...
END SUBROUTINE FCN_C05PBF
...
REAL (KIND=nag_wp) :: FJAC(LDFJAC,N)
...
CALL C05PBF(FCN_C05PBF,N,X,FVEC,FJAC,LDFJAC,XTOL,WA,LWA,IFAIL)
or
SUBROUTINE FCN_C05PBA(N,X,FVEC,FJAC,LDFJAC,IFLAG,IUSER,RUSER)
...
END SUBROUTINE FCN_C05PBA
...
REAL (KIND=nag_wp) :: FJAC(LDFJAC,N)
...
CALL C05PBA(FCN_C05PBA,N,X,FVEC,FJAC,LDFJAC,XTOL,WA,LWA,IUSER,RUSER,IFAIL)
New: SUBROUTINE FCN(N,X,FVEC,FJAC,IUSER,RUSER,IFLAG)
...
END SUBROUTINE FCN
...
REAL (KIND=nag_wp) :: FJAC(N,N)
...
CALL C05RBF(FCN,N,X,FVEC,FJAC,XTOL,IUSER,RUSER,IFAIL)
C05PCF/C05PCA
Withdrawn at Mark 25.
Replaced by
C05RCF.
Old: SUBROUTINE FCN_C05PCF(N,X,FVEC,FJAC,LDFJAC,IFLAG)
...
END SUBROUTINE FCN_C05PCF
...
REAL (KIND=nag_wp) :: FJAC(LDFJAC,N)
...
CALL C05PCF(FCN_C05PCF,N,X,FVEC,FJAC,LDFJAC,XTOL,MAXFEV,DIAG,MODE,FACTOR, &
NPRINT,NFEV,NJEV,R,LR,QTF,W,IFAIL)
or
SUBROUTINE FCN_C05PCA(N,X,FVEC,FJAC,LDFJAC,IFLAG,IUSER,RUSER)
...
END SUBROUTINE FCN_C05PCA
...
REAL (KIND=nag_wp) :: FJAC(LDFJAC,N)
...
CALL C05PCA(FCN_C05PCA,N,X,FVEC,FJAC,LDFJAC,XTOL,MAXFEV,DIAG,MODE,FACTOR, &
NPRINT,NFEV,NJEV,R,LR,QTF,W,IUSER,RUSER,IFAIL)
New: SUBROUTINE FCN(N,X,FVEC,FJAC,IUSER,RUSER,IFLAG)
...
INTEGER, INTENT(INOUT) :: IUSER(*)
REAL (KIND=nag_wp), INTENT(INOUT) :: RUSER(*)
...
END FUNCTION FCN
...
REAL (KIND=nag_wp) :: FJAC(N,N)
...
CALL C05RCF(FCN,N,X,FVEC,FJAC,XTOL,MAXFEV,MODE,DIAG,FACTOR, &
NPRINT,NFEV,NJEV,R,QTF,IUSER,RUSER,IFAIL)
C05PDF/C05PDA
Withdrawn at Mark 25.
Replaced by
C05RDF.
Old: REAL (KIND=nag_wp) :: FJAC(LDFJAC,N), RWSAV(10)
INTEGER :: IWSAV(15)
...
CALL C05PDF(IREVCM,N,X,FVEC,FJAC,LDFJAC,XTOL,DIAG,MODE,FACTOR, &
R,LR,QTF,W,IFAIL)
or
CALL C05PDA(IREVCM,N,X,FVEC,FJAC,LDFJAC,XTOL,DIAG,MODE,FACTOR, &
R,LR,QTF,W,LWSAV,IWSAV,RWSAV,IFAIL)
New: REAL (KIND=nag_wp) :: FJAC(N,N), RWSAV(4*N+10)
INTEGER :: IWSAV(17)
...
CALL C05RDF(IREVCM,N,X,FVEC,FJAC,XTOL,MODE,DIAG,FACTOR, &
R,QTF,IWSAV,RWSAV,IFAIL)
C05ZAF
Withdrawn at Mark 25.
Replaced by
C05ZDF.
Old: CALL C05ZAF(M,N,X,FVEC,FJAC,LDFJAC,XP,FVECP,MODE,ERR)
New: IFAIL = 0
CALL C05ZDF(MODE,M,N,X,FVEC,FJAC,LDFJAC,XP,FVECP,ERR,IFAIL)
The array
XP must now have dimension
N regardless of the value of
MODE, and likewise
ERR must now have dimension
M regardless. The parameter
IFAIL is the standard NAG parameter for error trapping. If you are unfamiliar with this parameter you should refer to
Section 3.3 in the Essential Introduction for details.
C06 – Summation of Series
C06DBF
Withdrawn at Mark 25.
Replaced by
C06DCF.
Old: DO I = 1, LX
RES(I) = C06DBF(X(I),C,N,S)
END DO
New: XMIN = 1.0D0
XMAX = 1.0D0
SELECT CASE (S)
CASE (1,2,3)
S_USE = S
CASE DEFAULT
S_USE = 2
END SELECT
IFAIL = 0
CALL C06DCF(X,LX,XMIN,XMAX,C,N,S_USE,RES,IFAIL)
The old routine
C06DBF returns a single sum at a time, whereas the new routine
C06DCF returns a vector of
LX values at once. The values supplied in
X to
C06DCF are unnormalized original variable values in the range
$\left[{\mathbf{XMIN}},{\mathbf{XMAX}}\right]$. The parameter
IFAIL is the standard NAG parameter for error trapping. If you are unfamiliar with this parameter you should refer to
Section 3.3 in the Essential Introduction for details.
C06EAF
Scheduled for withdrawal at Mark 26.
Replaced by
C06PAF.
Old: CALL C06EAF(X,N,IFAIL)
New: CALL C06PAF('F',X,N,WORK,IFAIL)
where
WORK is a real array of length
$3\times {\mathbf{N}}+100$ and
the dimension of the array
X has been extended from the original
N
to
${\mathbf{N}}+2$.
The output values
X are stored in a different order with real and imaginary parts stored contiguously. The mapping of output elements is as follows:
 ${\mathbf{X}}\left(2\times \mathit{i}\right)\leftarrow {\mathbf{X}}\left(\mathit{i}\right)$, for $\mathit{i}=0,1,\dots ,{\mathbf{N}}/2$ and
${\mathbf{X}}\left(2\times \mathit{i}+1\right)\leftarrow {\mathbf{X}}\left({\mathbf{N}}\mathit{i}\right)$, for $\mathit{i}=1,2,\dots ,\left({\mathbf{N}}+1\right)/2$.
C06EBF
Scheduled for withdrawal at Mark 26.
Replaced by
C06PAF.
Old: CALL C06EBF(X,N,IFAIL)
New: CALL C06PAF('B',X,N,WORK,IFAIL)
where
WORK is a real array of length
$3\times {\mathbf{N}}+100$ and
the dimension of the array
X has been extended from the original
N
to
${\mathbf{N}}+2$.
The input values of
X are stored in a different order with real and imaginary parts stored contiguously. Also
C06PAF performs the inverse transform without the need to first conjugate. If prior conjugation of original array
X is assumed then the mapping of input elements is:
 ${\mathbf{X}}\left(2\times \mathit{i}\right)\leftarrow {\mathbf{X}}\left(\mathit{i}\right)$, for $\mathit{i}=0,1,\dots ,{\mathbf{N}}/2$ and
${\mathbf{X}}\left(2\times \mathit{i}+1\right)\leftarrow {\mathbf{X}}\left({\mathbf{N}}\mathit{i}\right)$, for $\mathit{i}=1,2,\dots ,\left({\mathbf{N}}1\right)/2$.
C06ECF
Scheduled for withdrawal at Mark 26.
Replaced by
C06PCF.
Old: CALL C06ECF(X,Y,N,IFAIL)
New: CALL C06PCF('F',Z,N,WORK,IFAIL)
where
WORK is a complex array of length
$2\times {\mathbf{N}}+15$ and
Z
is a complex array of length
N such that
$\text{Z}\left(\mathit{i}\right)=\mathrm{CMPLX}\left(\text{X}\left(\mathit{i}\right),\text{Y}\left(\mathit{i}\right)\right)$, for
$\mathit{i}=0,1,\dots {\mathbf{N}}1$ on input and output.
C06EKF
Scheduled for withdrawal at Mark 26.
Replaced by
C06FKF.
Old: CALL C06EKF(IJOB,X,Y,N,IFAIL)
New: CALL C06FKF(IJOB,X,Y,N,WORK,IFAIL)
where
WORK is a real array of length
N.
C06FRF
Scheduled for withdrawal at Mark 26.
Replaced by
C06PSF.
Old: call C06FRF(m,n,x,y,init,trig,work,ifail)
New: Do j = 1, m*n
cx(j) = cmplx(x(j),y(j),kind=nag_wp)
End Do
Call C06PSF('F',m,n,cx,cwork,ifail)
x(1:m*n) = real(cx(1:m*n))
y(1:m*n) = aimag(cx(1:m*n))
where
$\mathrm{cx}$ and $\mathrm{cwork}$ are complex array of length $\mathrm{m}\times \mathrm{n}$ and $\mathrm{n}\times \mathrm{m}+2\times \mathrm{n}+15$ respectively.
C06FUF
Scheduled for withdrawal at Mark 26.
Replaced by
C06PUF.
Old: Call C06FUF(m,n,x,y,init,trigm,trign,work,ifail)
New: Do j = 1, m*n
cx(j) = cmplx(x(j),y(j),kind=nag_wp)
End Do
Call C06PUF('F',m,n,cx,cwork,ifail)
x(1:m*n) = real(cx(1:m*n))
y(1:m*n) = aimag(cx(1:m*n))
where $\mathrm{cx}$ and $\mathrm{cwork}$ are complex arrays of lengths $\mathrm{m}\times \mathrm{n}$ and $\mathrm{n}\times \mathrm{m}+2\times \mathrm{n}+2\times \mathrm{m}+30$ respectively.
C06GBF
Scheduled for withdrawal at Mark 26.
There is no replacement for this routine.
C06GCF
Scheduled for withdrawal at Mark 26.
There is no replacement for this routine.
C06GQF
Scheduled for withdrawal at Mark 26.
There is no replacement for this routine.
C06GSF
Scheduled for withdrawal at Mark 26.
There is no replacement for this routine.
C06HAF
Scheduled for withdrawal at Mark 26.
Replaced by
C06REF.
Old: Call C06HAF(m,n,x,init,trig,work,ifail)
New: y(1:m*(n1)) = x(1:m*(n1))
Call C06RAF(m,n,y,rwork,ifail)
x(1:m*n) = y(1:m*n)
where $\mathrm{y}$ and $\mathrm{rwork}$ are real arrays of lengths $\mathrm{m}\times \left(\mathrm{n}+2\right)$ and $\mathrm{m}\times \mathrm{n}+2\times \mathrm{n}+2\times \mathrm{m}+15$ respectively.
C06HBF
Scheduled for withdrawal at Mark 26.
Replaced by
C06RFF.
Old: Call c06hbf(m,n,x,init,trig,work,ifail)
New: y(1:m*(n+1)) = x(1:m*(n+1))
Call c06rbf(m,n,y,rwork,ifail)
x(1:m*(n+1)) = y(1:m*(n+1))
where $\mathrm{y}$ is a real array of length $\mathrm{m}\times \left(\mathrm{n}+3\right)$.
C06HCF
Scheduled for withdrawal at Mark 26.
Replaced by
C06RGF.
Old: Call c06hcf(direct,m,n,x,init,trig,work,ifail)
New: y(1:m*n) = x(1:m*n)
Call c06raf(direct,m,n,y,rwork,ifail)
x(1:m*n) = y(1:m*n)
where $\mathrm{y}$ and $\mathrm{rwork}$ are real arrays of lengths $\mathrm{m}\times \left(\mathrm{n}+2\right)$ and $\mathrm{m}\times \mathrm{n}+2\times \mathrm{n}+2\times \mathrm{m}+15$ respectively.
C06HDF
Scheduled for withdrawal at Mark 26.
Replaced by
C06RHF.
Old: Call c06hdf(direct,m,n,x,init,trig,work,ifail)
New: y(1:m*n) = x(1:m*n)
Call c06raf(direct,m,n,y,rwork,ifail)
x(1:m*n) = y(1:m*n)
where $\mathrm{y}$ and $\mathrm{rwork}$ are real arrays of lengths $\mathrm{m}\times \left(\mathrm{n}+2\right)$ and $\mathrm{m}\times \mathrm{n}+2\times \mathrm{n}+2\times \mathrm{m}+15$ respectively.
D01 – Quadrature
D01BAF
Scheduled for withdrawal at Mark 26.
Replaced by
D01UAF.
Old : FUNCTION FUN(x)
...
real(kind=nag_wp) :: FUN
real(kind=nag_wp), intent(in) :: X
FUN = ...
END FUNCTION
DINEST = D01BAF(D01XXX,A,B,N,FUN,IFAIL)
New : SUBROUTINE F(X,NX,FV,IFLAG,IUSER,RUSER)
...
! see example below
...
END SUBROUTINE F
...
integer :: key
integer, allocatable :: iuser(:)
real(kind=nag_wp), allocatable :: ruser(:)
! set KEY according to quadrature formula
! KEY = 0 : (D01XXX=D01BAZ)
! KEY = 3 : (D01XXX=D01BAY)
! KEY = 4 : (D01XXX=D01BAW)
! KEY = 5 : (D01XXX=D01BAX)
! KEY = ABS(KEY) for normal weights
KEY = 0
allocate(iuser(liuser), ruser(lruser))
CALL D01UAF(KEY,A,B,N,F,DINEST,IUSER,RUSER,IFAIL)
IUSER and
RUSER are arrays
available to allow you to pass information to the usersupplied subroutine
F.
IFLAG is an integer which you may use to force an immediate exit from
D01UAF in case of an error in the usersupplied subroutine
F.
F may be used to call the original FUN as follows, although it may be more efficient to recode the integrand.
SUBROUTINE F(X,NX,FV,IFLAG,IUSER,RUSER)
...
integer, intent(in) :: NX
integer, intent(inout) :: iflag
real(kind=nag_wp), intent(in) :: X(NX)
real(kind=nag_wp), intent(out) :: fv(nx)
real(kind=wp) , intent(inout) :: ruser(*)
integer, intent(inout) :: iuser(*)
integer :: j
external FUN
do j=1,nx
FV(j) = FUN(x(j))
enddo
END SUBROUTINE F
D01BBF
Scheduled for withdrawal at Mark 26.
Replaced by
D01TBF.
OLD : CALL D01BBF(D01XXX,A,B,ITYPE,N,WEIGHT,ABSCIS,IFAIL)
NEW :
Integer :: key
call D01TBF(KEY,A,B,N,WEIGHT,ABSICS,IFAIL)
The supplied subroutines D01XXX and the parameter ITYPE have been combined into a single parameter
KEY.
${\mathbf{KEY}}<0$ is equivalent to
$\text{ITYPE}=1$ (adjusted weights).
${\mathbf{KEY}}>0$ is equivalent to
$\mathrm{ITYPE}=0$ (normal weights).
$\left{\mathbf{KEY}}\right$ indicates the quadrature rule.
 $\left{\mathbf{KEY}}\right=0$ : Gauss–Legendre ($\mathbf{D01XXX}=\mathbf{D01BAZ}$)
 $\left{\mathbf{KEY}}\right=3$ : Gauss–Laguerre ($\mathbf{D01XXX}=\mathbf{D01BAX}$)
 $\left{\mathbf{KEY}}\right=4$ : Gauss–Hermite ($\mathbf{D01XXX}=\mathbf{D01BAW}$)
 $\left{\mathbf{KEY}}\right=5$ : Rational Gauss ($\mathbf{D01XXX}=\mathbf{D01BAY}$)
D01RBF
Scheduled for withdrawal at Mark 27.
Replaced by No replacement required.
See
Section 10 in D01RAF for further details.
D02 – Ordinary Differential Equations
D02BAF
Withdrawn at Mark 18.
Replaced by
D02PEF and associated D02P routines.
Old: CALL D02BAF(X,XEND,N,Y,TOL,FCN,W,IFAIL)
New: THRESH(1:N) = TOL
CALL D02PQF(N,X,XEND,Y,TOL,THRESH, &
2,0.0D0,IWSAV,RWSAV,IFAIL)
CALL D02PEF(F2,N,XEND,X,Y,YP,YMAX, &
IUSER,RUSER,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
IUSER and
RUSER are arrays available to allow you to pass information to the user defined routine F2.
The definition of F2 can use the original routine FCN as follows:
SUBROUTINE F2(T,N,Y,YP,IUSER,RUSER)
! .. Scalar Arguments ..
Real (Kind=wp), Intent (In) :: t
Integer, Intent (In) :: n
! .. Array Arguments ..
Real (Kind=wp), Intent (Inout) :: ruser(1)
Real (Kind=wp), Intent (In) :: y(n)
Real (Kind=wp), Intent (Out) :: yp(n)
Integer, Intent (Inout) :: iuser(1)
! .. Procedure Arguments ..
External :: fcn
! .. Executable Statements ..
Continue
Call fcn(t,y,yp)
Return
End Subroutine F2
D02BBF
Withdrawn at Mark 18.
Replaced by
D02PEF and associated D02P routines.
Old: CALL D02BBF(X,XEND,N,Y,TOL,IRELAB,FCN,OUTPUT,W,IFAIL)
New: THRES(1:N) = TOL
CALL D02PQF(N,X,XEND,Y,TOL,THRESH, &
2,0.0D0,IWSAV,RWSAV,IFAIL)
CALL D02PEF(F2,N,XEND,X,Y,YP,YMAX, &
IUSER,RUSER,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
IUSER and
RUSER are arrays available to allow you to pass information to the user defined routine F2.
The definition of F2 can use the original routine FCN as follows:
SUBROUTINE F2(T,N,Y,YP,IUSER,RUSER)
! .. Scalar Arguments ..
Real (Kind=wp), Intent (In) :: t
Integer, Intent (In) :: n
! .. Array Arguments ..
Real (Kind=wp), Intent (Inout) :: ruser(1)
Real (Kind=wp), Intent (In) :: y(n)
Real (Kind=wp), Intent (Out) :: yp(n)
Integer, Intent (Inout) :: iuser(1)
! .. Procedure Arguments ..
External :: fcn
! .. Executable Statements ..
Continue
Call fcn(t,y,yp)
Return
End Subroutine F2
D02BDF
Withdrawn at Mark 18.
Replaced by
D02PEF and associated D02P routines.
Old: CALL D02BDF(X,XEND,N,Y,TOL,IRELAB,FCN,STIFF,YNORM,W, &
IW,M,OUTPUT,IFAIL)
CALL D02PQF(N,X,XEND,Y,TOL,THRESH, &
2,0.0D0,IWSAV,RWSAV,IFAIL)
... set XWANT ...
10 CONTINUE
CALL D02PEF(F2,N,XEND,X,Y,YP,YMAX, &
IUSER,RUSER,IWSAV,RWSAV,IFAIL)
IF (XWANT.LT.XEND) THEN
... reset XWANT ...
GO TO 10
ENDIF
CALL D02PUF(N,RMSERR,ERRMAX,TERRMX,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
IUSER and
RUSER are arrays available to allow you to pass information to the user defined function F2.
The definition of F2 can use the original function FCN as follows:
SUBROUTINE F2(T,N,Y,YP,IUSER,RUSER)
! .. Scalar Arguments ..
Real (Kind=wp), Intent (In) :: t
Integer, Intent (In) :: n
! .. Array Arguments ..
Real (Kind=wp), Intent (Inout) :: ruser(1)
Real (Kind=wp), Intent (In) :: y(n)
Real (Kind=wp), Intent (Out) :: yp(n)
Integer, Intent (Inout) :: iuser(1)
! .. Procedure Arguments ..
External :: fcn
! .. Executable Statements ..
Continue
Call fcn(t,y,yp)
Return
End Subroutine F2
D02CAF
Withdrawn at Mark 18.
Replaced by
D02CJF.
Old: CALL D02CAF(X,XEND,N,Y,TOL,FCN,W,IFAIL)
New: CALL D02CJF(X,XEND,N,Y,FCN,TOL,'M',D02CJX,D02CJW,W,IFAIL)
D02CJX is a subroutine provided in the NAG Fortran Library and D02CJW is a real function also provided. Both must be declared as EXTERNAL or USEd from the
nag_library MODULE. The array
W needs to be 5 elements greater in length.
D02CBF
Withdrawn at Mark 18.
Replaced by
D02CJF.
Old: CALL D02CBF(X,XEND,N,Y,TOL,IRELAB,FCN,OUTPUT,W,IFAIL)
New: CALL D02CJF(X,XEND,N,Y,FCN,TOL,RELABS,OUTPUT,D02CJW,W,IFAIL)
D02CJW is a real function provided in the NAG Fortran Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE. The array
W needs to be 5 elements greater in length. The integer parameter IRELAB (which can take values
$0$,
$1$ or
$2$) is catered for by the new CHARACTER*1 argument
RELABS (whose corresponding values are 'M', 'A' and 'R').
D02CGF
Withdrawn at Mark 18.
Replaced by
D02CJF.
Old: CALL D02CGF(X,XEND,N,Y,TOL,HMAX,M,VAL,FCN,W,IFAIL)
New: CALL D02CJF(X,XEND,N,Y,FCN,TOL,'M',D02CJX,G,W,IFAIL)
.
.
.
REAL (KIND=nag_wp) FUNCTION G(X,Y)
REAL (KIND=nag_wp) X,Y(*)
G = Y(M)VAL
END
D02CJX is a subroutine provided in the NAG Fortran Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE. Note the functionality of HMAX is no longer available directly. Checking the value of
$\mathrm{Y}\left(\mathrm{M}\right)\mathrm{VAL}$ at intervals of length HMAX can be effected by a usersupplied procedure
OUTPUT in place of D02CJX in the call described above. See the routine document for
D02CJF for more details.
D02CHF
Withdrawn at Mark 18.
Replaced by
D02CJF.
Old: CALL D02CHF(X,XEND,N,Y,TOL,IRELAB,HMAX,FCN,G,W,IFAIL)
New: CALL D02CJF(X,XEND,N,Y,FCN,TOL,RELABS,D02CJX,G,W,IFAIL)
D02CJX is a subroutine provided by the NAG Fortran Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE. The functionality of HMAX can be provided as described under the replacement call for
D02CGF. The relationship between the parameters IRELAB and
RELABS is described under the replacement call for
D02CBF.
D02EAF
Withdrawn at Mark 18.
Replaced by
D02EJF.
Old: CALL D02EAF(X,XEND,N,Y,TOL,FCN,W,IW,IFAIL)
New: CALL D02EJF(X,XEND,N,Y,FCN,D02EJY,TOL,'M',D02EJX,D02EJW,W,IW, &
IFAIL)
D02EJY and D02EJX are subroutines provided in the NAG Fortran Library and D02EJW is a real function also provided. All must be declared as EXTERNAL or USEd from the nag_library MODULE.
D02EBF
Withdrawn at Mark 18.
Replaced by
D02EJF.
Old: CALL D02EBF(X,XEND,N,Y,TOL,IRELAB,FCN,MPED,PEDERV,OUTPUT,W,IW, &
IFAIL)
New: CALL D02EJF(X,XEND,N,Y,FCN,PEDERV,TOL,RELABS,OUTPUT,D02EJW,W,IW, &
IFAIL)
D02EJW is a real function provided in the NAG Fortran Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE. The integer parameter IRELAB (which can take values 0, 1 or 2) is catered for by the new CHARACTER*1 argument
RELABS (whose corresponding values are 'M', 'A' and 'R'). If
$\mathrm{MPED}=0$ in the call of
D02EBF then
PEDERV must be the routine D02EJY, which is supplied in the Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE.
D02EGF
Withdrawn at Mark 18.
Replaced by
D02EJF.
Old: CALL D02EGF(X,XEND,N,Y,TOL,HMAX,M,VAL,FCN,W,IW,IFAIL)
New: CALL D02EJF(X,XEND,N,Y,FCN,D02EJY,TOL,'M',D02EJX,G,W,IW,IFAIL)
.
.
.
REAL (KIND=nag_wp) FUNCTION G(X,Y)
REAL (KIND=nag_wp) X,Y(*)
G = Y(M)VAL
END
D02EJY and D02EJX are subroutines provided in the NAG Fortran Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE. Note that the functionality of HMAX is no longer available directly. Checking the value of
$\mathrm{Y}\left(\mathrm{M}\right)\mathrm{VAL}$ at intervals of length HMAX can be effected by a usersupplied procedure
OUTPUT in place of D02EJX in the call described above. See the routine document for
D02EJF for more details.
D02EHF
Withdrawn at Mark 18.
Replaced by
D02EJF.
Old: CALL D02EHF(X,XEND,N,Y,TOL,IRELAB,HMAX,MPED,PEDERV,FCN,G,W,IFAIL)
New: CALL D02EJF(X,XEND,N,Y,FCN,PEDERV,TOL,RELABS,D02EJX,G,W,IW,IFAIL)
D02EJX is a subroutine provided by the NAG Fortran Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE. The functionality of HMAX can be provided as described under the replacement call for
D02EGF. The relationship between the parameters IRELAB and
RELABS is described under the replacement call for
D02EBF. If
$\mathrm{MPED}=0$ in the call of
D02EHF then
PEDERV must be the routine D02EJY, which is supplied in the Library and must be declared as EXTERNAL or USEd from the
nag_library MODULE.
D02PAF
Withdrawn at Mark 18.
Replaced by
D02PEF and associated D02P routines.
Existing programs should be modified to call
D02PQF and
D02PEF. The interfaces are significantly different and therefore precise details of a replacement call cannot be given. Please consult the appropriate routine documents.
D02PCF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PEF and associated D02P routines.
Old: CALL D02PVF(N,TSTART,YINIT,TEND,TOL,THRESH,METHOD,'U',ERRASS, &
HSTART,W,LW,IFAIL)
...
CALL D02PCF(F,TWANT,T,Y,YP,YMAX,W,IFAIL)
New: IF (.Not. ERRASS) METHOD = METHOD
CALL D02PQF(N,TSTART,TEND,YINIT,TOL,THRESH,METHOD,HSTART,IWSAV, &
RWSAV,IFAIL)
...
CALL D02PEF(F2,N,TWANT,T,Y,YP,YMAX,IUSER,RUSER,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
IUSER and
RUSER are arrays available to allow you to pass information to the user defined routine F2 (see
F in
D02PEF).
The definition of
F2
(see
F in
D02PEF) can use the original routine F as follows:
SUBROUTINE F2(T,N,Y,YP,IUSER,RUSER)
! .. Scalar Arguments ..
Real (Kind=wp), Intent (In) :: t
Integer, Intent (In) :: n
! .. Array Arguments ..
Real (Kind=wp), Intent (Inout) :: ruser(1)
Real (Kind=wp), Intent (In) :: y(n)
Real (Kind=wp), Intent (Out) :: yp(n)
Integer, Intent (Inout) :: iuser(1)
! .. Procedure Arguments ..
External :: f
! .. Executable Statements ..
Continue
Call f(t,y,yp)
Return
End Subroutine F2
D02PDF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PFF and associated D02P routines.
Old: CALL D02PVF(N,TSTART,YINIT,TEND,TOL,THRESH,METHOD,'U',ERRASS, &
HSTART,W,LW,IFAIL)
...
CALL D02PDF(F,T,Y,YP,WORK,IFAIL)
New: IF (.Not. ERRASS) METHOD = METHOD
CALL D02PQF(N,TSTART,TEND,YINIT,TOL,THRESH,METHOD,HSTART,IWSAV, &
RWSAV,IFAIL)
...
CALL D02PFF(F2,N,T,Y,YP,IUSER,RUSER,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
IUSER and
RUSER are arrays
available to allow you to pass information to the user defined routine
F2
(see
F in
D02PEF).
The definition of
F2
(see
F in
D02PEF) can use the original routine F as follows:
SUBROUTINE F2(T,N,Y,YP,IUSER,RUSER)
! .. Scalar Arguments ..
Real (Kind=wp), Intent (In) :: t
Integer, Intent (In) :: n
! .. Array Arguments ..
Real (Kind=wp), Intent (Inout) :: ruser(1)
Real (Kind=wp), Intent (In) :: y(n)
Real (Kind=wp), Intent (Out) :: yp(n)
Integer, Intent (Inout) :: iuser(1)
! .. Procedure Arguments ..
External :: f
! .. Executable Statements ..
Continue
Call f(t,y,yp)
Return
End Subroutine F2
D02PVF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PQF.
See
D02PCF and
D02PDF for further information.
D02PWF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PRF.
Old: CALL D02PWF(TENDNU,IFAIL)
New: CALL D02PRF(TENDNU,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350$.
D02PXF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PSF.
Old: CALL D02PXF(TWANT,REQEST,NWANT,YWANT,YPWANT,F,WORK,WRKINT, &
LENINT,IFAIL)
New:
If (REQEST=='S' .or. REQEST=='s') Then
IDERIV = 0
Else if (REQEST=='D' .or. REQEST=='d') Then
IDERIV = 1
Else
IDERIV = 2
End If
CALL D02PSF(TWANT,IDERIV,NWANT,YWANT,YPWANT,F2,WORKINT, &
LENINT,IUSER,RUSER,IWSAV,RWSAV,IFAIL)
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
IUSER and
RUSER are arrays available to allow you to pass information to the user defined routine F2 (see
F in
D02PSF).
WCOMM is a real array of length
LWCOMM. See the routine document for
D02PSF for further information.
The definition of
F2
(see
F in
D02PSF) can use the original routine F as follows:
SUBROUTINE F2(T,N,Y,YP,IUSER,RUSER)
! .. Scalar Arguments ..
Real (Kind=wp), Intent (In) :: t
Integer, Intent (In) :: n
! .. Array Arguments ..
Real (Kind=wp), Intent (Inout) :: ruser(1)
Real (Kind=wp), Intent (In) :: y(n)
Real (Kind=wp), Intent (Out) :: yp(n)
Integer, Intent (Inout) :: iuser(1)
! .. Procedure Arguments ..
External :: f
! .. Executable Statements ..
Continue
Call f(t,y,yp)
Return
End Subroutine F2
D02PYF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PTF.
Old: Call D02PYF(TOTFCN,STPCST,WASTE,STPSOK,HNEXT,IFAIL)
New: Call D02PTF(TOTFCN,STPCST,WASTE,STPSOK,HNEXT,IWSAV, &
RWSAV,IFAIL)
D02PZF
Scheduled for withdrawal at Mark 26.
Replaced by
D02PUF.
Old: Call D02PZF(RMSERR,ERRMAX,TERRMX,WORK,IFAIL)
New: Call D02PUF(N,RMSERR,ERRMAX,TERRMX,IWSAV,RWSAV,IFAIL)
N must be unchanged from that passed to
D02PQF.
IWSAV is an integer array of length
$130$ and
RWSAV is a real array of length
$350+32\times {\mathbf{N}}$.
D02TKF
Scheduled for withdrawal at Mark 27.
Replaced by
D02TLF.
Old: Call D02TKF(FFUN,FJAC,GAFUN,GBFUN,GAJAC,GBJAC,GUESS,RCOMM,ICOMM,IFAIL)
New: Call D02TLF(FFUN,FJAC,GAFUN,GBFUN,GAJAC,GBJAC,GUESS,RCOMM,ICOMM,IUSER, &
RUSER,IFAIL)
The arrays
IUSER and
RUSER are also supplied as an additional two parameters to the seven usersupplied routines. These arrays are free to use to supply information to the seven routine parameters.
D02XAF
Withdrawn at Mark 18.
Replaced by
D02PSF and associated D02P routines.
Not needed except with
D02PAF.
D02XBF
Withdrawn at Mark 18.
Replaced by
D02PSF and associated D02P routines.
Not needed except with
D02PAF.
D02YAF
Withdrawn at Mark 18.
Replaced by
D02PFF and associated D02P routines.
There is no precise equivalent to this routine.
E01 – Interpolation
E01SEF
Withdrawn at Mark 20.
Replaced by
E01SGF.
Old: CALL E01SEF(M,X,Y,F,RNW,RNQ,NW,NQ,FNODES,MINNQ,WRK,IFAIL)
New: CALL E01SGF(M,X,Y,F,NW,NQ,IQ,LIQ,RQ,LRQ,IFAIL)
E01SEF has been superseded by
E01SGF which gives improved accuracy, facilities for obtaining gradient values and a consistent interface with
E01TGF for interpolation of scattered data in three dimensions.
The interpolant generated by the two routines will not be identical, but similar results may be obtained by using the same values of
NW and
NQ. Details of the interpolant are passed to the evaluator through the arrays
IQ and
RQ rather than FNODES and RNW.
E01SFF
Withdrawn at Mark 20.
Replaced by
E01SHF.
Old: CALL E01SFF(M,X,Y,F,RNW,FNODES,PX,PY,PF,IFAIL)
New: CALL E01SHF(M,X,Y,F,IQ,LIQ,RQ,LRQ,1,PX,PY,PF,QX,QY,IFAIL)
The two calls will not produce identical results due to differences in the generation routines
E01SEF and
E01SGF. Details of the interpolant are passed from
E01SGF through the arrays
IQ and
RQ rather than FNODES and RNW.
E01SHF also returns gradient values in
QX and
QY and allows evaluation at arrays of points rather than just single points.
E02 – Curve and Surface Fitting
E02ACF
Scheduled for withdrawal at Mark 27.
Replaced by
E02ALF.
Old: CALL E02ACF(X, Y, N, A, M1, REF)
New: CALL E02ALF(N, X, Y, M1, A, REF, IFAIL)
E04 – Minimizing or Maximizing a Function
E04CCF/E04CCA
Withdrawn at Mark 24.
Replaced by
E04CBF.
Old: CALL E04CCF(N,X,F,TOL,IW,W1,W2,W3,W4,W5,W6,FUNCT,MONIT,MAXCAL, &
IFAIL)
or
CALL E04CCA(N,X,F,TOL,IW,W1,W2,W3,W4,W5,W6,FUNCT2,MONIT2,MAXCAL, &
IUSER,RUSER,IFAIL)
New: CALL E04CBF(N,X,F,TOLF,TOLX,FUNCT2,MONIT3,MAXCAL,IUSER,RUSER, &
IFAIL)
SUBROUTINE MONIT3(FMIN,FMAX,SIM,N,NCALL,SERROR,VRATIO,IUSER,
RUSER)
INTEGER N, NCALL, IUSER(*)
REAL (KIND=nag_wp) FMIN, FMAX, SIM(N+1,N), SERROR, VRATIO, RUSER(*)
CALL MONIT2(FMIN,FMAX,SIM,N,N+1,NCALL,IUSER,RUSER)
! Add code here to monitor the values of SERROR and VRATIO, if necessary
RETURN
END
E04FDF
Withdrawn at Mark 19.
Replaced by
E04FYF.
Old: CALL E04FDF(M,N,X,FSUMSQ,IW,LIW,W,LW,IFAIL)
New: CALL E04FYF(M,N,LSFUN,X,FSUMSQ,W,LW,IUSER,USER,IFAIL)
LSFUN appears in the parameter list instead of the fixedname subroutine LSFUN1 of
E04FDF.
LSFUN must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition it has an extra two parameters,
IUSER and
USER, over and above those of LSFUN1. It may be derived from LSFUN1 as follows:
SUBROUTINE LSFUN(M,N,XC,FVECC,IUSER,USER)
INTEGER M, N, IUSER(*)
REAL (KIND=nag_wp) XC(N), FVECC(M), USER(*)
CALL LSFUN1(M,N,XC,FVECC)
RETURN
END
In general the extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing.
If however, a COMMON block was used to pass information into LSFUN1, or get information from LSFUN1, then the arrays
IUSER and
USER should be declared appropriately and used for this purpose.
E04GCF
Withdrawn at Mark 19.
Replaced by
E04GYF.
Old: CALL E04GCF(M,N,X,FSUMSQ,IW,LIW,W,LW,IFAIL)
New: CALL E04GYF(M,N,LSFUN,X,FSUMSQ,W,LW,IUSER,USER,IFAIL)
LSFUN appears in the parameter list instead of the fixedname subroutine LSFUN2 of
E04GCF.
LSFUN must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition it has an extra two parameters,
IUSER and
USER, over and above those of LSFUN2. It may be derived from LSFUN2 as follows:
SUBROUTINE LSFUN(M,N,XC,FVECC,FJACC,LJC,IUSER,USER)
INTEGER M, N, LJC, IUSER(*)
REAL (KIND=nag_wp) XC(N), FVECC(M), FJACC(LJC,N), USER(*)
CALL LSFUN2(M,N,XC,FVECC,FJACC,LJC)
RETURN
END
In general the extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing. If however, a COMMON block was used to pass information through
E04GCF into LSFUN2, or get information from LSFUN2, then the arrays
IUSER and
USER should be declared appropriately and used for this purpose.
E04GEF
Withdrawn at Mark 19.
Replaced by
E04GZF.
Old: CALL E04GEF(M,N,X,FSUMSQ,IW,LIW,W,LW,IFAIL)
New: CALL E04GZF(M,N,LSFUN,X,FSUMSQ,W,LW,IUSER,USER,IFAIL)
LSFUN appears in the parameter list instead of the fixedname subroutine LSFUN2 of
E04GEF.
LSFUN must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition it has an extra two parameters,
IUSER and
USER, over and above those of LSFUN2. It may be derived from LSFUN2 as follows:
SUBROUTINE LSFUN(M,N,X,FVECC,FJACC,LJC,IUSER,USER)
INTEGER M, N, LJC, IUSER(*)
REAL (KIND=nag_wp) XC(N), FVECC(M), FJACC(LJC,N), USER(*)
CALL LSFUN2(M,N,XC,FVECC,FJACC,LJC)
RETURN
END
In general the extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing. If however, a COMMON block was used to pass information through
E04GEF into LSFUN2, or get information from LSFUN2, then the arrays
IUSER and
USER should be declared appropriately and used for this purpose.
E04HFF
Withdrawn at Mark 19.
Replaced by
E04HYF.
Old: CALL E04HFF(M,N,X,FSUMSQ,IW,LIW,W,LW,IFAIL)
New: CALL E04HYF(M,N,LSFUN,LSHES,X,FSUMSQ,W,LW,IUSER,USER,IFAIL)
LSFUN and
LSHES appear in the parameter list instead of the fixedname subroutines LSFUN2 and LSHES2 of
E04HFF.
LSFUN and
LSHES must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition they have an extra two parameters,
IUSER and
USER, over and above those of LSFUN2 and LSHES2. They may be derived from LSFUN2 and LSHES2 as follows:
SUBROUTINE LSFUN(M,N,XC,FVECC,FJACC,LJC,IUSER,USER)
INTEGER M, N, LJC, IUSER(*)
REAL (KIND=nag_wp) XC(N), FVECC(M), FJACC(LJC,N), USER(*)
CALL LSFUN2(M,N,XC,FVECC,FJACC,LJC)
RETURN
END
SUBROUTINE LSHES(M,N,FVECC,XC,B,LB,IUSER,USER)
INTEGER M, N, LB, IUSER(*)
REAL (KIND=nag_wp) FVECC(M), XC(N), B(LB), USER(*)
CALL LSHES2(M,N,FVECC,XC,B,LB)
RETURN
END
In general, the extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing. If, however, a COMMON block was used to pass information through
E04HFF into LSFUN2 or LSHES2, or to get information from LSFUN2 or LSHES2, then the arrays
IUSER and
RUSER should be declared appropriately and used for this purpose.
E04JAF
Withdrawn at Mark 19.
Replaced by
E04JYF.
Old: CALL E04JAF(N,IBOUND,BL,BU,X,F,IW,LIW,LW,IFAIL)
New: CALL E04JYF(N,IBOUND,FUNCT,BL,BU,X,F,IW,LIW,W,LW,IUSER,USER,IFAIL)
FUNCT appears in the parameter list instead of the fixedname subroutine FUNCT1 of
E04JAF.
FUNCT must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition it has an extra two parameters,
IUSER and
USER, over and above those of FUNCT1. It may be derived from FUNCT1 as follows:
SUBROUTINE FUNCT(N,XC,FC,IUSER,USER)
INTEGER N, IUSER(*)
REAL (KIND=nag_wp) XC(N), FC, USER(*)
CALL FUNCT1(N,XC,FC)
RETURN
END
The extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing.
E04KAF
Withdrawn at Mark 19.
Replaced by
E04KYF.
Old: CALL E04KAF(N,IBOUND,BL,BU,X,F,G,IW,LIW,W,LW,IFAIL)
New: CALL E04KYF(N,IBOUND,FUNCT,BL,BU,X,F,G,IW,LIW,W,LW,IUSER,USER,IFAIL)
FUNCT appears in the parameter list instead of the fixedname subroutine FUNCT2 of
E04KAF.
FUNCT must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition it has an extra two parameters,
IUSER and
USER, over and above those of FUNCT2. It may be derived from FUNCT2 as follows:
SUBROUTINE FUNCT(N,XC,FC,GC,IUSER,USER)
INTEGER N, IUSER(*)
REAL (KIND=nag_wp) XC(N), FC, GC(N), USER(*)
CALL FUNCT2(N,XC,FC,GC)
RETURN
END
The extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing.
E04KCF
Withdrawn at Mark 19.
Replaced by
E04KZF.
Old: CALL E04KCF(N,IBOUND,BL,BU,X,F,G,IW,LIW,W,LW,IFAIL)
New: CALL E04KZF(N,IBOUND,FUNCT,BL,BU,X,F,G,IW,LIW,W,LW,IUSER,USER,IFAIL)
FUNCT appears in the parameter list instead of the fixedname subroutine FUNCT2 of
E04KCF.
FUNCT must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition it has an extra two parameters,
IUSER and
USER, over and above those of FUNCT2. It may be derived from FUNCT2 as follows:
SUBROUTINE FUNCT(N,XC,FC,GC,IUSER,USER)
INTEGER N, IUSER(*)
REAL (KIND=nag_wp) XC(N), FC, GC(N), USER(*)
CALL FUNCT2(N,XC,FC,GC)
RETURN
END
The extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing.
E04LAF
Withdrawn at Mark 19.
Replaced by
E04LYF.
Old: CALL E04LAF(N,IBOUND,BL,BU,X,F,G,IW,LIW,W,LW,IFAIL)
New: CALL E04LYF(N,IBOUND,FUNCT,HESS,BL,BU,X,F,G,IW,LIW,W,LW,IUSER,USER, &
IFAIL)
FUNCT and
HESS appear in the parameter list instead of the fixedname subroutines FUNCT2 and HESS2 of
E04LAF.
FUNCT and
HESS must be declared as EXTERNAL or be a module subprogram USEd in the calling (sub)program. In addition they have an extra two parameters,
IUSER and
USER, over and above those of FUNCT2 and HESS2. They may be derived from FUNCT2 and HESS2 as follows:
SUBROUTINE FUNCT(N,XC,FC,GC,IUSER,USER)
INTEGER N, IUSER(*)
REAL (KIND=nag_wp) XC(N), FC, GC(N), USER(*)
CALL FUNCT2(N,XC,FC,GC)
RETURN
END
SUBROUTINE HESS(N,XC,HESLC,LH,HESDC,IUSER,USER)
INTEGER N, LH, IUSER(*)
REAL (KIND=nag_wp) XC(N), HESLC(LH), HESDC(N), USER(*)
CALL HESS2(N,XC,HESLC,LH,HESDC)
RETURN
END
In general, the extra parameters,
IUSER and
USER, should be declared in the calling program as
${\mathbf{IUSER}}\left(1\right)$ and
${\mathbf{USER}}\left(1\right)$, but will not need initializing.
E04MBF
Withdrawn at Mark 18.
Replaced by
E04MFF/E04MFA.
Old: CALL E04MBF(ITMAX,MSGLVL,N,NCLIN,NCTOTL,NROWA,A,BL,BU,CVEC, &
LINOBJ,X,ISTATE,OBJLP,CLAMDA,IWORK,LIWORK,WORK, &
LWORK,IFAIL)
New: CALL E04MFF(N,NCLIN,A,NROWA,BL,BU,CVEC,ISTATE,X,ITER,OBJLP, &
AX,CLAMDA,IWORK,LIWORK,WORK,LWORK,IFAIL)
The parameter NCTOTL is no longer required. Values for ITMAX, MSGLVL and LINOBJ may be supplied by calling an option setting routine.
E04MFF/E04MFA contains two additional parameters as follows:
 ITER– integer.
 ${\mathbf{AX}}\left(*\right)$ – real array of dimension at least $\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{NCLIN}}\right)$.
The minimum value of the parameter
LIWORK must be increased from
$2\times {\mathbf{N}}$ to
$2\times {\mathbf{N}}+3$. The minimum value of the parameter
LWORK may also need to be changed. See the routine documents for further information.
E04NAF
Withdrawn at Mark 18.
Replaced by
E04NFF/E04NFA.
Old: CALL E04NAF(ITMAX,MSGLVL,N,NCLIN,NCTOTL,NROWA,NROWH,NCOLH, &
BIGBND,A,BL,BU,CVEC,FEATOL,HESS,QPHESS,COLD,LP, &
ORTHOG,X,ISTATE,ITER,OBJ,CLAMDA,IWORK,LIWORK, &
WORK,LWORK,IFAIL)
New: CALL E04NFF(N,NCLIN,A,NROWA,BL,BU,CVEC,HESS,NROWH,QPHESS, &
ISTATE,X,ITER,OBJ,AX,CLAMDA,IWORK,LIWORK,WORK, &
LWORK,IFAIL)
The specification of the subroutine
QPHESS must also be changed as follows:
Old: SUBROUTINE QPHESS(N,NROWH,NCOLH,JTHCOL,HESS,X,HX)
INTEGER N, NROWH, NCOLH, JTHCOL
REAL (KIND=nag_wp) HESS(NROWH,NCOLH), X(N), HX(N)
New: SUBROUTINE QPHESS(N,JTHCOL,HESS,NROWH,X,HX)
INTEGER N, JTHCOL, NROWH
REAL (KIND=nag_wp) HESS(NROWH,*), X(N), HX(N)
The parameters NCTOTL, NCOLH and ORTHOG are no longer required. Values for ITMAX, MSGLVL, BIGBND, FEATOL, COLD and LP may be supplied by calling an option setting routine.
E04NFF/E04NFA contains one additional parameter as follows:
 ${\mathbf{AX}}\left(*\right)$ – real array of dimension at least $\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{NCLIN}}\right)$.
The minimum value of the parameter
LIWORK must be increased from
$2\times {\mathbf{N}}$ to
$2\times {\mathbf{N}}+3$. The minimum value of the parameter
LWORK may also need to be changed. See the routine documents for further information.
E04UNF
Withdrawn at Mark 22.
Replaced by
E04USF/E04USA.
Old: CALL E04UNF(M,N,NCLIN,NCNLN,LDA,LDCJ,LDFJ, &
LDR,A,BL,BU,Y,CONFUN,OBJFUN,ITER, &
ISTATE,C,CJAC,F,FJAC,CLAMDA,OBJF, &
R,X,IWORK,LIWORK,WORK,LWORK,IUSER, &
RUSER,IFAIL)
New: CALL E04USF(M,N,NCLIN,NCNLN,LDA,LDCJ,LDFJ, &
LDR,A,BL,BU,Y,CONFUN,OBJFUN,ITER, &
ISTATE,C,CJAC,F,FJAC,CLAMDA,OBJF, &
R,X,IWORK,LIWORK,WORK,LWORK,IUSER, &
RUSER,IFAIL)
The specification of the subroutine
OBJFUN must also be changed as follows:
Old: SUBROUTINE OBJFUN(MODE,M,N,LDFJ,X,F,FJAC,NSTATE,IUSER,RUSER)
INTEGER MODE,M,N,LDFJ,NSTATE,IUSER(*)
REAL (KIND=nag_wp) X(N),F(*),FJAC(LDFJ,*),RUSER(*)
New: SUBROUTINE OBJFUN(MODE,M,N,LDFJ,NEEDFI,X,F,FJAC,NSTATE, &
IUSER,RUSER)
INTEGER MODE,M,N,LDFJ,NEEDFI,NSTATE,IUSER(*)
REAL (KIND=nag_wp) X(N),F(*),FJAC(LDFJ,*),RUSER(*)
See the routine documents for further information.
E04UPF
Withdrawn at Mark 19.
Replaced by
E04USF/E04USA.
Old: CALL E04UPF(M,N,NCLIN,NCNLN,LDA,LDCJ,LDFJ,LDR,A,BL,BU, &
CONFUN,OBJFUN,ITER,ISTATE,C,CJAC,F,FJAC, &
CLAMDA,OBJF,R,X,IWORK,LIWORK,WORK,LWORK, &
IUSER,USER,IFAIL)
New: CALL E04USF(M,N,NCLIN,NCNLN,LDA,LDCJ,LDFJ,LDR,A,BL,BU, &
Y,CONFUN,OBJFUN,ITER,ISTATE,C,CJAC,F,FJAC, &
CLAMDA,OBJF, R,X,IWORK,LIWORK,WORK,LWORK, &
IUSER,USER,IFAIL)
E04USF/E04USA contains one additional parameter as follows:
 ${\mathbf{Y}}\left({\mathbf{M}}\right)$ – real array.
Note that a call to
E04UPF is the same as a call to
E04USF/E04USA with
${\mathbf{Y}}\left(i\right)=0.0$, for
$i=1,2,\dots ,{\mathbf{M}}$.
The specification of the subroutine
OBJFUN must also be changed as follows:
Old: SUBROUTINE OBJFUN(MODE,M,N,LDFJ,X,F,FJAC,NSTATE,IUSER,USER)
INTEGER MODE,M,N,LDFJ,NSTATE,IUSER(*)
REAL (KIND=nag_wp) X(N),F(*),FJAC(LDFJ,*),USER(*)
New: SUBROUTINE OBJFUN(MODE,M,N,LDFJ,NEEDFI,X,F,FJAC,NSTATE, &
IUSER,USER)
INTEGER MODE,M,N,NEEFI,NSTATE,IUSER(*)
REAL (KIND=nag_wp) X(N),F(*),FJAC(LDFJ,*),USER(*)
See the routine documents for further information.
E04ZCF/E04ZCA
Withdrawn at Mark 24.
There is no replacement for this routine.
F01 – Matrix Operations, Including Inversion
F01AEF
Old: CALL F01AEF(N,A,IA,B,IB,DL,IFAIL)
New: DO 20 J = 1, N
DO 10 I = J, N
A(I,J) = A(J,I)
B(I,J) = B(J,I)
10 CONTINUE
DL(J) = B(J,J)
20 CONTINUE
CALL DPOTRF('L',N,B,IB,INFO)
IF (INFO.EQ.0) THEN
CALL DSYGST(1,'L',N,A,IA,B,IB,INFO)
ELSE
IFAIL = 1
END IF
CALL DSWAP(N,DL,1,B,IB+1)
INFO is set to a positive value if the matrix $B$ is not positive definite. It is essential to test IFAIL.
F01AFF
Withdrawn at Mark 18.
Replaced by
F06EGF (DSWAP) and
F06YJF (DTRSM).
Old: CALL F01AFF(N,M1,M2,B,IB,DL,Z,IZ)
New: CALL DSWAP(N,DL,1,B,IB+1)
CALL DTRSM('L','L','T','N',N,M2M1+1,1.0D0,B,IB,Z(1,M1),IZ)
CALL DSWAP(N,DL,1,B,IB+1)
F01AGF
Withdrawn at Mark 18.
Replaced by
F08FEF (DSYTRD).
Old: CALL F01AGF(N,TOL,A,IA,D,E,E2)
New: CALL DSYTRD('L',N,A,IA,D,E(2),TAU,WORK,LWORK,INFO)
E(1) = 0.0D0
DO 10 I = 1, N
E2(I) = E(I)*E(I)
10 CONTINUE
where
TAU is a real array of length at least
$\left({\mathbf{N}}1\right)$,
WORK is a real array of length at least (1) and
LWORK is its actual length.
Note that the tridiagonal matrix computed by
F08FEF (DSYTRD) is different from that computed by
F01AGF, but it has the same eigenvalues.
F01AHF
Withdrawn at Mark 18.
Replaced by
F08FGF (DORMTR).
The following replacement is valid only if the previous call to
F01AGF has been replaced by a call to
F08FEF (DSYTRD) as shown above.
Old: CALL F01AHF(N,M1,M2,A,IA,E,Z,IZ)
New: CALL DORMTR('L','L','N',N,M2M1+1,A,IA,TAU,Z(1,M1),IZ,WORK, &
LWORK,INFO)
where
WORK is a real array of length at least
$\left(\mathrm{M2}\mathrm{M1}+1\right)$, and
LWORK is its actual length.
F01AJF
Withdrawn at Mark 18.
Replaced by
F08FEF (DSYTRD) and
F08FFF (DORGTR).
Old: CALL F01AJF(N,TOL,A,IA,D,E,Z,IZ)
New: CALL DSYTRD('L',N,A,IA,D,E(2),TAU,WORK,LWORK,INFO)
E(1) = 0.0D0
CALL F06QFF('L',N,N,A,IA,Z,IZ)
CALL DORGTR('L',N,Z,IZ,TAU,WORK,LWORK,INFO)
where
TAU is a real array of length at least
$\left({\mathbf{N}}1\right)$,
WORK is a real array of length at least
$\left({\mathbf{N}}1\right)$ and
LWORK is its actual length.
Note that the tridiagonal matrix
$T$ and the orthogonal matrix
$Q$ computed by
F08FEF (DSYTRD) and
F08FFF (DORGTR) are different from those computed by
F01AJF, but they satisfy the same relation
${Q}^{\mathrm{T}}AQ=T$.
F01AKF
Withdrawn at Mark 18.
Replaced by
F08NEF (DGEHRD).
Old: CALL F01AKF(N,K,L,A,IA,INTGER)
New: CALL DGEHRD(N,K,L,A,IA,TAU,WORK,LWORK,INFO)
where
TAU is a real array of length at least
$\left({\mathbf{N}}1\right)$,
WORK is a real array of length at least
$\left({\mathbf{N}}\right)$ and
LWORK is its actual length.
Note that the Hessenberg matrix computed by
F08NEF (DGEHRD) is different from that computed by
F01AKF, because
F08NEF (DGEHRD) uses orthogonal transformations, whereas
F01AKF uses stabilized elementary transformations.
F01ALF
Withdrawn at Mark 18.
Replaced by
F08NGF (DORMHR).
The following replacement is valid only if the previous call to
F01AKF has been replaced by a call to
F08NEF (DGEHRD) as indicated above.
Old: CALL F01ALF(K,L,IR,A,IA,INTGER,Z,IZ,N)
New: CALL DORMHR('L','N',N,IR,K,L,A,IA,TAU,Z,IZ,WORK,LWORK,INFO)
where
WORK is a real array of length at least
$\left({\mathbf{IR}}\right)$ and
LWORK is its actual length.
F01AMF
Withdrawn at Mark 18.
Replaced by
F08NSF (ZGEHRD).
Old: CALL F01AMF(N,K,L,AR,IAR,AI,IAI,INTGER)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZGEHRD(N,K,L,A,IA,TAU,WORK,LWORK,INFO)
where
A is a
complex
array of dimension
$\left({\mathbf{IA}},{\mathbf{N}}\right)$,
TAU is a
complex
array of length at least
$\left({\mathbf{N}}1\right)$,
WORK is a
complex
array of length at least
$\left({\mathbf{N}}\right)$ and
LWORK is its actual length.
Note that the Hessenberg matrix computed by
F08NSF (ZGEHRD) is different from that computed by
F01AMF, because
F08NSF (ZGEHRD) uses orthogonal transformations, whereas
F01AMF uses stabilized elementary transformations.
F01ANF
Withdrawn at Mark 18.
Replaced by
F08NUF (ZUNMHR).
The following replacement is valid only if the previous call to
F01AMF has been replaced by a call to
F08NSF (ZGEHRD) as indicated above.
Old: CALL F01ANF(K,L,IR,AR,IAR,AI,IAI,INTGER,ZR,IZR,ZI,IZI,N)
New: CALL ZUNMHR('L','N',N,IR,K,L,A,IA,TAU,Z,IZ,WORK,LWORK,INFO)
DO 20 J = 1, IR
DO 10 I = 1, N
ZR(I,J) = REAL(Z(I,J))
ZI(I,J) = AIMAG(Z(I,J))
10 CONTINUE
20 CONTINUE
where
A is a
complex
array of dimension
$\left({\mathbf{IA}},{\mathbf{N}}\right)$,
TAU is a
complex
array of length at least
$\left({\mathbf{N}}1\right)$,
Z is a
complex
array of dimension
$\left({\mathbf{IZ}},{\mathbf{IR}}\right)$,
WORK is a
complex
array of length at least
$\left({\mathbf{IR}}\right)$ and
LWORK is its actual length.
F01APF
Withdrawn at Mark 18.
Replaced by
F06QFF and
F08NFF (DORGHR).
The following replacement is valid only if the previous call to
F01AKF has been replaced by a call to
F08NEF (DGEHRD) as indicated above.
Old: CALL F01APF(N,K,L,INTGER,H,IH,V,IV)
New: CALL F06QFF('L',N,N,H,IH,V,IV)
CALL DORGHR(N,K,L,V,IV,TAU,WORK,LWORK,INFO)
where
WORK is a real array of length at least
$\left({\mathbf{N}}\right)$, and
LWORK is its actual length.
Note that the orthogonal matrix formed by
F08NFF (DORGHR) is not the same as the nonorthogonal matrix formed by
F01APF. See
F01AKF above.
F01ATF
Withdrawn at Mark 18.
Replaced by
F08NHF (DGEBAL).
Old: CALL F01ATF(N,IB,A,IA,K,L,D)
New: CALL DGEBAL('B',N,A,IA,K,L,D,INFO)
Note that the balanced matrix returned by
F08NHF (DGEBAL) may be different from that returned by
F01ATF.
F01AUF
Withdrawn at Mark 18.
Replaced by
F08NJF (DGEBAK).
Old: CALL F01AUF(N,K,L,M,D,Z,IZ)
New: CALL DGEBAK('B','R',N,K,L,D,M,Z,IZ,INFO)
F01AVF
Withdrawn at Mark 18.
Replaced by
F08NVF (ZGEBAL).
Old: CALL F01AVF(N,IB,AR,IAR,AI,IAI,K,L,D)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZGEBAL('B',N,A,IA,K,L,D,INFO)
DO 20 J = 1, N
DO 10 I = 1, N
AR(I,J) = REAL(A(I,J))
AI(I,J) = AIMAG(A(I,J))
10 CONTINUE
20 CONTINUE
where
A is a
complex
array of dimension
$\left({\mathbf{IA}},{\mathbf{N}}\right)$.
Note that the balanced matrix returned by
F08NVF (ZGEBAL) may be different from that returned by
F01AVF.
F01AWF
Withdrawn at Mark 18.
Replaced by
F08NWF (ZGEBAK).
Old: CALL F01AWF(N,K,L,M,D,ZR,IZR,ZI,IZI)
New: DO 20 J = 1, M
DO 10 I = 1, N
Z(I,J) = CMPLX(ZR(I,J),ZI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZGEBAK('B','R',N,K,L,D,M,Z,IZ,INFO)
DO 40 J = 1, M
DO 30 I = 1, N
ZR(I,J) = REAL(Z(I,J))
ZI(I,J) = AIMAG(Z(I,J))
30 CONTINUE
40 CONTINUE
where
Z is a
complex
array of dimension
$\left({\mathbf{IZ}},{\mathbf{M}}\right)$.
F01AXF
Withdrawn at Mark 18.
Replaced by
F06EFF (DCOPY) and
F08BEF (DGEQPF).
Old: CALL F01AXF(M,N,QR,IQR,ALPHA,IPIV,Y,E,IFAIL)
New: CALL DGEQPF(M,N,QR,IQR,IPIV,Y,WORK,INFO)
CALL DCOPY(N,QR,IQR+1,ALPHA,1)
where
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$.
Note that the details of the Householder matrices returned by
F08BEF (DGEQPF) are different from those returned by
F01AXF, but they determine the same orthogonal matrix
$Q$.
F01AYF
Withdrawn at Mark 18.
Replaced by
F08GEF (DSPTRD).
Old: CALL F01AYF(N,TOL,A,IA,D,E,E2)
New: CALL DSPTRD('U',N,A,D,E(2),TAU,INFO)
E(1) = 0.0D0
DO 10 I = 1, N
E2(I) = E(I)*E(I)
10 CONTINUE
where
TAU is a real array of length at least
$\left({\mathbf{N}}1\right)$.
F01AZF
Withdrawn at Mark 18.
Replaced by
F08GGF (DOPMTR).
The following replacement is valid only if the previous call to
F01AYF has been replaced by a call to
F08GEF (DSPTRD) as shown above.
Old: CALL F01AZF(N,M1,M2,A,IA,Z,IZ)
New: CALL DOPMTR('L','U','N',N,M2M1+1,A,TAU,Z(1,M1),IZ,WORK,INFO)
where
WORK is a real array of length at least
$\left(\mathrm{M2}\mathrm{M1}+1\right)$.
F01BCF
Withdrawn at Mark 18.
Replaced by
F08FSF (ZHETRD) and
F08FTF (ZUNGTR).
Old: CALL F01BCF(N,TOL,AR,IAR,AI,IAI,D,E,WK1,WK2)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZHETRD('L',N,A,IA,D,E(2),TAU,WORK,LWORK,INFO)
E(1) = 0.0D0
CALL ZUNGTR('L',N,A,IA,TAU,WORK,LWORK,INFO)
DO 40 J = 1, N
DO 30 I = 1, N
AR(I,J) = REAL(A(I,J))
AI(I,J) = AIMAG(A(I,J))
30 CONTINUE
40 CONTINUE
where
A is a
complex
array of dimension
$\left({\mathbf{IA}},{\mathbf{N}}\right)$,
TAU is a
complex
array of length at least
$\left({\mathbf{N}}1\right)$,
WORK is a
complex
array of length at least
$\left({\mathbf{N}}1\right)$, and
LWORK is its actual length.
Note that the tridiagonal matrix
$T$ and the unitary matrix
$Q$ computed by
F08FSF (ZHETRD) and
F08FTF (ZUNGTR) are different from those computed by
F01BCF, but they satisfy the same relation
${Q}^{\mathrm{H}}AQ=T$.
F01BDF
Old: CALL F01BDF(N,A,IA,B,IB,DL,IFAIL)
New: DO 20 J = 1, N
DO 10 I = J, N
A(I,J) = A(J,I)
B(I,J) = B(J,I)
10 CONTINUE
DL(J) = B(J,J)
20 CONTINUE
CALL DPOTRF('L',N,B,IB,INFO)
IF (INFO.EQ.0) THEN
CALL DSYGST(2,'L',N,A,IA,B,IB,INFO)
ELSE
IFAIL = 1
END IF
CALL DSWAP(N,DL,1,B,IB+1)
IFAIL is set to 1 if the matrix
B is not positive definite. It is essential to test IFAIL.
F01BEF
Withdrawn at Mark 18.
Replaced by
F06YFF (DTRMM) and
F06EGF (DSWAP).
Old: CALL F01BEF(N,M1,M2,B,IB,DL,V,IV)
New: CALL DSWAP(N,DL,1,B,IB+1)
CALL DTRMM('L','L','N','N',N,M2M1+1,1.0D0,B,IB,V(1,M1),IV)
CALL DSWAP(N,DL,1,B,IB+1)
F01BTF
Withdrawn at Mark 18.
Replaced by
F07ADF (DGETRF).
Old: CALL F01BTF(N,A,IA,P,DP,IFAIL)
New: CALL DGETRF(N,N,A,IA,IPIV,INFO)
where
IPIV is an integer array of length
N which holds the indices of the pivot elements, and the array P is no longer required. It may be important to note that after a call of
F07ADF (DGETRF),
A is overwritten by the upper triangular factor
$U$ and the offdiagonal elements of the unit lower triangular factor
$L$, whereas the factorization returned by
F01BTF gives
$U$ the unit diagonal. The permutation determinant DP returned by
F01BTF is not computed by
F07ADF (DGETRF). If this value is required, it may be calculated after a call of
F07ADF (DGETRF) by code similar to the following:
DP = 1.0D0
DO 10 I = 1, N
IF (I.NE.IPIV(I)) DP = DP
10 CONTINUE
F01BWF
Withdrawn at Mark 18.
Replaced by
F08HEF (DSBTRD).
Old: CALL F01BWF(N,M1,A,IA,D,E)
New: CALL DSBTRD('N','U',N,M11,A,IA,D,E(2),Q,1,WORK,INFO)
E(1) = 0.0D0
where
Q is a dummy real array of length (1) (not used in this call), and
WORK is a real array of length at least
$\left({\mathbf{N}}\right)$.
Note that the tridiagonal matrix computed by
F08HEF (DSBTRD) is different from that computed by
F01BWF, but it has the same eigenvalues.
F01LBF
Withdrawn at Mark 18.
Replaced by
F07BDF (DGBTRF).
Old: CALL F01LBF(N,M1,M2,A,IA,AL,IL,IN,IV,IFAIL)
New: CALL DGBTRF(N,N,M1,M2,A,IA,IN,INFO)
where the size of array
A must now have a leading dimension
IA of at least
$2\times {\mathbf{M1}}+{\mathbf{M2}}+1$. The array AL, its associated dimension parameter IL, and the parameter IV are not required for
F07BDF (DGBTRF) because this routine overwrites
A by both the
$L$ and
$U$ factors. The scheme by which the matrix is packed into the array is completely different from that used by
F01LBF; the relevant routine document should be consulted for details.
F01MAF
Withdrawn at Mark 19.
Replaced by
F11JAF.
Existing programs should be modified to call
F11JAF. The interfaces are significantly different and therefore precise details of a replacement call cannot be given. Please consult the appropriate routine document.
F01QCF
Withdrawn at Mark 18.
Replaced by
F08AEF (DGEQRF).
Old: CALL F01QCF(M,N,A,LDA,ZETA,IFAIL)
New: CALL DGEQRF(M,N,A,LDA,ZETA,WORK,LWORK,INFO)
where
WORK is a real array of length at least
$\left({\mathbf{N}}\right)$, and
LWORK is its actual length.
The subdiagonal elements of
A and the elements of
ZETA returned by
F08AEF (DGEQRF) are not the same as those returned by
F01QCF. Subsequent calls to
F01QDF or
F01QEF must also be replaced by calls to
F08AFF (DORGQR) or
F08AGF (DORMQR) as shown below.
F01QDF
Withdrawn at Mark 18.
Replaced by
F08AGF (DORMQR).
The following replacement is valid only if the previous call to
F01QCF has been replaced by a call to
F08AEF (DGEQRF) as shown
below or if the previous call to
F01QFF has been replaced by a call to
F08BEF (DGEQPF) as shown below.
It also assumes that the second argument of
F01QDF is set to
$\mathrm{WHERET}=\text{'S'}$, which is appropriate if the contents of
A and
ZETA have not been changed after the call of
F01QCF.
Old: CALL F01QDF(TRANS,'S',M,N,A,LDA,ZETA,NCOLB,B,LDB,WORK,IFAIL)
New: CALL DORMQR('L',TRANS,M,NCOLB,N,A,LDA,ZETA,B,LDB,WORK,LWORK,INFO)
where
LWORK is the actual length of
WORK.
F01QEF
Withdrawn at Mark 18.
Replaced by
F08AFF (DORGQR).
The following replacement is valid only if the previous call to
F01QCF has been replaced by a call to
F08AEF (DGEQRF) as shown
above or if the previous call to
F01QFF has been replaced by a call to
F08BEF (DGEQPF) as shown below.
It also assumes that the first argument of
F01QEF is set to
$\mathrm{WHERET}=\text{'S'}$, which is appropriate if the contents of
A and
ZETA have not been changed after the call of
F01QCF.
Old: CALL F01QEF('S',M,N,NCOLQ,A,LDA,ZETA,WORK,IFAIL)
New: CALL DORGQR(M,NCOLQ,N,A,LDA,ZETA,WORK,LWORK,INFO)
where
LWORK is the actual length of
WORK.
F01QFF
Withdrawn at Mark 18.
Replaced by
F08BEF (DGEQPF).
The following replacement assumes that the first argument of
F01QFF (PIVOT) is 'C'. There is no direct replacement if PIVOT
$=$ 'S'.
Old: CALL F01QFF('C',M,N,A,LDA,ZETA,PERM,WORK,IFAIL)
New: DO 10 I = 1, N
PERM(I) = 0
10 CONTINUE
CALL DGEQPF(M,N,A,LDA,PERM,ZETA,WORK,INFO)
where
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$ (
F01QFF only requires
WORK to be of length
$\left(2\times {\mathbf{N}}\right)$).
The subdiagonal elements of
A and the elements of
ZETA returned by
F08BEF (DGEQPF) are not the same as those returned by
F01QFF. Subsequent calls to
F01QDF or
F01QEF must also be replaced by calls to
F08AGF (DORMQR) or
F08AFF (DORGQR) as shown above. Note also that the array
PERM returned by
F08BEF (DGEQPF) holds details of the interchanges in a different form than that returned by
F01QFF.
F01RCF
Withdrawn at Mark 18.
Replaced by
F08ASF (ZGEQRF).
The subdiagonal elements of
A and the elements of
THETA returned by
F08ASF (ZGEQRF) are not the same as those returned by
F01RCF. Subsequent calls to
F01RDF or
F01REF must also be replaced by calls to
F08AUF (ZUNMQR) or
F08ATF (ZUNGQR) as shown below.
Old: CALL F01RCF(M,N,A,LDA,THETA,IFAIL)
New: CALL ZGEQRF(M,N,A,LDA,THETA,WORK,LWORK,INFO)
where
WORK is a
complex
array of length at least
$\left({\mathbf{N}}\right)$, and
LWORK is its actual length.
F01RDF
Withdrawn at Mark 18.
Replaced by
F08AUF (ZUNMQR).
The following replacement is valid only if the previous call to
F01RCF has been replaced by a call to
F08ASF (ZGEQRF) as shown
below or if the previous call to
F01RFF has been replaced by a call to
F08BSF (ZGEQPF) as shown below.
It also assumes that the second argument of
F01RDF is set to
$\mathrm{WHERET}=\text{'S'}$, which is appropriate if the contents of
A and
THETA have not been changed after the call of
F01RCF.
Old: CALL F01RDF(TRANS,'S',M,N,A,LDA,THETA,NCOLB,B,LDB,WORK,IFAIL)
New: CALL ZUNMQR('L',TRANS,M,NCOLB,N,A,LDA,THETA,B,LDB,WORK,LWORK, &
INFO)
where
LWORK is the actual length of
WORK.
F01REF
Withdrawn at Mark 18.
Replaced by
F08ATF (ZUNGQR).
The following replacement is valid only if the previous call to
F01RCF has been replaced by a call to
F08ASF (ZGEQRF) as shown
below or if the previous call to
F01RFF has been replaced by a call to
F08BSF (ZGEQPF) as shown below.
It also assumes that the first argument of
F01REF is set to
$\mathrm{WHERET}=\text{'S'}$, which is appropriate if the contents of
A and
THETA have not been changed after the call of
F01RCF.
Old: CALL F01REF('S',M,N,NCOLQ,A,LDA,THETA,WORK,IFAIL)
New: CALL ZUNGQR(M,NCOLQ,N,A,LDA,THETA,WORK,LWORK,INFO)
where
LWORK is the actual length of
WORK.
F01RFF
Withdrawn at Mark 18.
Replaced by
F08BSF (ZGEQPF).
The following replacement assumes that the first argument of
F01RFF (PIVOT) is 'C'. There is no direct replacement if
$\mathrm{PIVOT}=\text{'S'}$.
Old: CALL F01RFF('C',M,N,A,LDA,THETA,PERM,WORK,IFAIL)
New: DO 10 I = 1, N
PERM(I) = 0
10 CONTINUE
CALL ZGEQPF(M,N,A,LDA,PERM,THETA,CWORK,WORK,INFO)
where
CWORK is a
complex
array of length at least
$\left({\mathbf{N}}\right)$.
The subdiagonal elements of
A and the elements of
THETA returned by
F08BSF (ZGEQPF) are not the same as those returned by
F01RFF. Subsequent calls to
F01RDF or
F01REF must also be replaced by calls to
F08AUF (ZUNMQR) or
F08ATF (ZUNGQR) as shown above. Note also that the array
PERM returned by
F08BSF (ZGEQPF) holds details of the interchanges in a different form than that returned by
F01RFF.
F02 – Eigenvalues and Eigenvectors
F02AAF
Withdrawn at Mark 18.
Replaced by
F08FAF (DSYEV).
Old: CALL F02AAF(A,IA,N,R,E,IFAIL)
New: CALL DSYEV('N','L',N,A,IA,R,WORK,LWORK,INFO)
IF (INFO.NE.0) THEN ...
where
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$ and
LWORK is its actual length. Larger values of
LWORK, up to some optimal value, may improve performance.
F02ABF
Withdrawn at Mark 18.
Replaced by
F08FAF (DSYEV).
Old: CALL F02ABF(A,IA,N,R,V,IV,E,IFAIL)
New: CALL F06QFF('L',N,N,A,IA,V,IV)
CALL DSYEV('V','L',N,V,IV,R,WORK,LWORK,INFO)
IF (INFO.NE.0) THEN ...
where
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$ and
LWORK is its actual length. Larger values of
LWORK, up to some optimal value, may improve performance. If
F02ABF was called with the same array supplied for V and A, then the call to
F06QFF
may be omitted.
F02ADF
Withdrawn at Mark 18.
Replaced by
F08SAF (DSYGV).
Old: CALL F02ADF(A,IA,B,IB,N,R,DE,IFAIL)
New: CALL DSYGV(1,'N','U',N,A,IA,B,IB,R,WORK,LWORK,INFO)
IF (INFO.NE.0) THEN ...
where
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$ and
LWORK is its actual length. Larger values of
LWORK, up to some optimal value, may improve performance.
Note that the call to
F08SAF (DSYGV) will overwrite the upper triangles of the arrays
A and
B and leave the subdiagonal elements unchanged, whereas the call to
F02ADF overwrites the lower triangle and leaves the elements above the diagonal unchanged.
F02AEF
Withdrawn at Mark 18.
Replaced by
F08SAF (DSYGV).
Old: CALL F02AEF(A,IA,B,IB,N,R,V,IV,DL,E,IFAIL)
New: CALL F06QFF('U',N,N,A,IA,V,IV)
CALL DSYGV(1,'V','U',N,V,IV,B,IB,R,WORK,LWORK,INFO)
IF (INFO.NE.0) THEN
...
where
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$ and
LWORK is its actual length.
Note that the call to
F08SAF (DSYGV) will overwrite the upper triangle of the array
B and leave the subdiagonal elements unchanged, whereas the call to
F02AEF overwrites the lower triangle and leaves the elements above the diagonal unchanged. The call to
F06QFF
copies A to
V, so
A is left unchanged. If
F02AEF was called with the same array supplied for V and A, then the call to
F06QFF
may be omitted.
F02AFF
Withdrawn at Mark 18.
Replaced by
F08NAF (DGEEV).
Old: CALL F02AFF(A,IA,N,RR,RI,INTGER,IFAIL)
New: CALL DGEEV('N','N',N,A,IA,RR,RI,VR,1,VI,1, &
WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
....
where
VR and
VI are real arrays of length (1) (not used in this call),
WORK is a real array of length at least
$\left(4\times {\mathbf{N}}\right)$ and
LWORK is its actual length; the iteration counts (returned by
F02AFF in the array INTGER) are not available from
F08NAF (DGEEV). Larger values of
LWORK, up to some optimal value, may improve performance.
F02AGF
Withdrawn at Mark 18.
Replaced by
F08NAF (DGEEV).
Old: CALL F02AGF(A,IA,N,RR,RI,VR,IVR,VI,IVI,INTGER,IFAIL)
New: CALL DGEEV(('N','V',N,A,IA,RR,RI,VL,LDVL,VR1,LDVR1, &
WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
! Eigenvector information is stored differently in VR1
! VR(j)=VR1(j) if RI(j) = 0.0
! VR(j)=VR1(j) and VI(j)=VR1(j+1) and
! VR(j+1)=VR1(j) and VI(j+1) =  VR1(j+1) if RI(j)/= (not equals) 0 and
! RI(j) = RI(j+1)
....
where
WORK is a real array of length at least
$\left(4\times {\mathbf{N}}\right)$ and
LWORK is its actual length; the iteration counts (returned by
F02AGF in the array INTGER) are not available from
F08NAF (DGEEV). Larger values of
LWORK, up to some optimal value, may improve performance.
F02AJF
Withdrawn at Mark 18.
Replaced by
F08NNF (ZGEEV).
Old: CALL F02AJF(AR,IAR,AI,IAI,N,RR,RI,INTGER,IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZGEEV('N','N',N,A,LDA,R,VL,1,VR,1,WORK, &
LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
DO 30 I = 1, N
RR(I) = REAL(R(I))
RI(I) = AIMAG(R(I))
30 CONTINUE
....
where
A is a
complex
array of dimension
$\left({\mathbf{LDA}},{\mathbf{N}}\right)$,
LDA must be at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$,
R is a
complex
array of dimension (
N),
VR and
VL are dummy
complex
array of length (1) (not used in this call),
RWORK is a real array of length at least
$\left(2\times {\mathbf{N}}\right)$,
WORK is a
complex
array of length at least
$\left(2\times {\mathbf{N}}\right)$ and
LWORK is its actual length. Larger values of
LWORK, up to some optimal value, may improve performance. The iteration counts (returned by
F02AJF in the array INTGER) are not available from
F08NNF (ZGEEV).
F02AKF
Withdrawn at Mark 18.
Replaced by
F08NNF (ZGEEV).
Old: CALL F02AKF(AR,IAR,AI,IAI,N,RR,RI,VR,IVR,VI,IVI,INTGER,IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZGEEV('N','V',N,A,LDA,R,VL,LDVL,VR1,LDVR, &
WORK,LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
DO 40 J = 1, N
RR(J) = REAL(R(J))
RI(J) = AIMAG(R(J))
DO 30 I = 1, N
VR(I,J) = REAL(VR1(I,J))
VI(I,J) = AIMAG(VR1(I,J))
30 CONTINUE
40 CONTINUE
....
where
A is a
complex
array of dimension
$\left({\mathbf{LDA}},{\mathbf{N}}\right)$,
LDA is at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$,
R is a
complex
array of length (
N),
VL is a
complex
array of dimension (1,1),
LDVL is 1,
VR1 is a
complex
array of dimension
$\left({\mathbf{LDVR}},{\mathbf{N}}\right)$,
LDVR is at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$,
RWORK is a real array of length at least
$\left(2\times {\mathbf{N}}\right)$,
WORK is a
complex
array of length at least
$\left(2\times {\mathbf{N}}\right)$ and
LWORK is its actual length. Larger values of
LWORK, up to some optimal value, may improve performance. The iteration counts (returned by
F02AKF in the array INTGER) are not available from
F08NNF (ZGEEV).
F02AMF
Withdrawn at Mark 18.
Replaced by
F08JEF (DSTEQR).
Old: CALL F02AMF(N,EPS,D,E,V,IV,IFAIL)
New: CALL DSTEQR('V',N,D,E(2),V,IV,WORK,INFO)
where
WORK is a real array of length at least
$\left(2\times \left({\mathbf{N}}1\right)\right)$.
F02ANF
Withdrawn at Mark 18.
Replaced by
F08PSF (ZHSEQR).
Old: CALL F02ANF(N,EPS,HR,IHR,HI,IHI,RR,RI,IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
H(I,J) = CMPLX(HR(I,J),HI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZHSEQR('E','N',N,1,N,H,IH,R,Z,1,WORK,1,INFO)
DO 30 I = 1, N
RR(I) = REAL(R(I))
RI(I) = AIMAG(R(I))
30 CONTINUE
where
H is a
complex
array of dimension
$\left({\mathbf{IH}},{\mathbf{N}}\right)$,
R is a
complex
array of length (
N),
Z is a dummy
complex
array of length (1) (not used in this call), and
WORK is a
complex
array of length at least
$\left({\mathbf{N}}\right)$.
F02APF
Withdrawn at Mark 18.
Replaced by
F08PEF (DHSEQR).
Old: CALL F02APF(N,EPS,H,IH,RR,RI,ICNT,IFAIL)
New: CALL DHSEQR('E','N',N,1,N,H,IH,RR,RI,Z,1,WORK,1,INFO)
where
Z is a dummy real array of length (1) (not used in this call), and
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$; the iteration counts (returned by
F02APF in the array ICNT) are not available from
F08PEF (DHSEQR).
F02AQF
Withdrawn at Mark 18.
Replaced by
F08PEF (DHSEQR) and
F08QKF (DTREVC).
Old: CALL F02AQF(N,K,L,EPS,H,IH,V,IV,RR,RI,INTGER,IFAIL)
New: CALL DHSEQR('S','V',N,K,L,H,IH,RR,RI,V,IV,WORK,1,INFO)
CALL DTREVC('R','O',SELECT,N,H,IH,V,IV,V,IV,N,M,WORK,INFO)
where
SELECT is a dummy logical array of length (1) (not used in this call), and
WORK is a real array of length at least
$\left(3\times {\mathbf{N}}\right)$; the iteration counts (returned by
F02AQF in the array INTGER) are not available from
F08PEF (DHSEQR);
M is an integer which is set to
N by
F08QKF (DTREVC).
F02ARF
Withdrawn at Mark 18.
Replaced by
F08PSF (ZHSEQR) and
F08QXF (ZTREVC).
Old: CALL F02ARF(N,K,L,EPS,INTGER,HR,IHR,HI,IHI,RR,RI,VR,IVR,VI, &
IVI, IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
H(I,J) = CMPLX(HR(I,J),HI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZHSEQR('S','V',N,K,L,H,IH,R,V,IV,WORK,1,INFO)
CALL ZTREVC('R','O',SELECT,N,H,IH,V,IV,V,IV,N,M,WORK,RWORK,INFO)
DO 40 J = 1, N
RR(J) = REAL(R(J))
RI(J) = AIMAG(R(J))
DO 30 I = 1, N
VR(I,J) = REAL(V(I,J))
VI(I,J) = AIMAG(V(I,J))
30 CONTINUE
40 CONTINUE
where
H is a
complex
array of dimension
$\left({\mathbf{IH}},{\mathbf{N}}\right)$,
R is a
complex
array of length (
N),
V is a
complex
array of dimension
$\left({\mathbf{IV}},{\mathbf{N}}\right)$,
WORK is a
complex
array of length at least
$\left(2\times {\mathbf{N}}\right)$ and
RWORK is a real array of length at least
$\left({\mathbf{N}}\right)$;
M is an integer which is set to
N by
F08QXF (ZTREVC).
If
F02ARF was preceded by a call to
F01AMF to reduce a full complex matrix to Hessenberg form, then the call to
F01AMF must also be replaced by calls to
F08NSF (ZGEHRD) and
F08NTF (ZUNGHR).
IH must be
$\text{}\ge \mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$ and
IV must be
$\text{}\ge \mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$.
F02AVF
Withdrawn at Mark 18.
Replaced by
F08JFF (DSTERF).
Old: CALL F02AVF(N,EPS,D,E,IFAIL)
New: CALL DSTERF(N,D,E(2),INFO)
F02AWF
Withdrawn at Mark 18.
Replaced by
F08FNF (ZHEEV).
Old: CALL F02AWF(AR,IAR,AI,IAI,N,R,WK1,WK2,WK3,IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZHEEV('N','L',N,A,LDA,R,WORK,LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
...
where
A is a
complex
array of dimension
$\left({\mathbf{LDA}},{\mathbf{N}}\right)$,
LDA is at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$ RWORK is a real array of length at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,3\times {\mathbf{N}}2\right)$,
WORK is a
complex
array of length at least
$\left(2\times {\mathbf{N}}\right)$ and
LWORK is its actual length. Larger values of
LWORK, up to some optimal value, may improve performance.
F02AXF
Withdrawn at Mark 18.
Replaced by
F08FNF (ZHEEV).
Old: CALL F02AXF(AR,IAR,AI,IAI,N,R,VR,IVR,VI,IVI,WK1,WK2,WK3,IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL F06TFF('L',N,N,A,LDA,V,LDV)
CALL ZHEEV('V','L',N,V,LDV,R,WORK,LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
DO 40 J = 1, N
DO 30 I = 1, N
VR(I,J) = REAL(V(I,J))
VI(I,J) = AIMAG(V(I,J))
30 CONTINUE
40 CONTINUE
...
where
A is a
complex
array of dimension
$\left({\mathbf{LDA}},{\mathbf{N}}\right)$,
LDA is at least max(1,N),
V is a
complex
array of dimension
$\left({\mathbf{LDV}},{\mathbf{N}}\right)$,
LDV is at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$,
RWORK is a real array of length at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,3\times {\mathbf{N}}2\right)$,
WORK is a
complex
array of length at least
$\left(2\times {\mathbf{N}}\right)$ and
LWORK is its actual length.
If
F02AXF was called with the same
arrays supplied for VR and AR and for VI and AI, then the
call to
F06TFF may be omitted.
F02AYF
Withdrawn at Mark 18.
Replaced by
F08JSF (ZSTEQR).
Old: CALL F02AYF(N,EPS,D,E,VR,IVR,VI,IVI,IFAIL)
New: CALL ZSTEQR('V',N,D,E(2),V,IV,WORK,INFO)
DO 40 J = 1, N
DO 30 I = 1, N
VR(I,J) = REAL(V(I,J))
VI(I,J) = AIMAG(V(I,J))
30 CONTINUE
40 CONTINUE
where
V is a
complex
array of dimension
$\left({\mathbf{IV}},{\mathbf{N}}\right)$, and
WORK is a real array of length at least
$\left(2\times \left({\mathbf{N}}1\right)\right)$.
F02BBF
Withdrawn at Mark 19.
Replaced by
F08FBF (DSYEVX).
Old: CALL F02BBF(A,LDA,N,RLB,RUB,M,MM,R,V,LDV,D,E,E2,X,G,C, &
ICOUNT,IFAIL)
New: CALL DSYEVX('V','V','L',N,A,LDA,RLB,RUB, &
0,0,2*X02AMF(),MM,R,V,LDV,WORK,LWORK,IWORK, &
JFAIL,INFO)
where
R must have dimension at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$,
WORK is a real array of length at least
$\left(4\times {\mathbf{N}}\right)$,
LWORK is its actual length,
JFAIL is an integer array of length at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{N}}\right)$, and
IWORK is an integer array of length at least
$\left(5\times {\mathbf{N}}\right)$. Note that in the call to
F02BBF R needs only to be of dimension (M). Larger values of
LWORK, up to some optimal value, may improve performance. Arguments C, ICOUNT, X, G, E2, E and D are not used.
F02BCF
Withdrawn at Mark 19.
Replaced by
F02ECF.
Old: CALL F02BCF(A,IA,N,ALB,UB,M,MM,RR,RI,VR,IVR,VI,IVI, &
INTGER,ICNT,C,B,IB,U,V,IFAIL)
New: CALL F02ECF('Moduli',N,A,IA,ALB,UB,M,MM,RR,RI,VR,IVR, &
VI,IVI,WORK,LWORK,ICNT,C,IFAIL)
where
WORK is a real array of length at least (
${\mathbf{N}}\times \left({\mathbf{N}}+4\right)$) and
LWORK is its actual length.
F02BDF
Withdrawn at Mark 19.
Replaced by
F02GCF.
Old: CALL F02BDF(AR,IAR,AI,IAI,N,ALB,UB,M,MM,RR,RI,VR,IVR, &
VI,IVI,INTGER,C,BR,IBR,BI,IBI,U,V,IFAIL)
New: DO 20 J = 1, N
DO 10 I = 1, N
A(I,J) = CMPLX(AR(I,J),AI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL F02GCF('Moduli',N,A,IA,ALB,UB,M,MM,R,V,IV,WORK, &
LWORK,RWORK,INTGER,C,IFAIL)
DO 30 I = 1, N
RR(I) = REAL(R(I))
RI(I) = AIMAG(R(I))
30 CONTINUE
DO 50 J = 1, MM
DO 40 I = 1, N
VR(I,J) = REAL(V(I,J))
VI(I,J) = AIMAG(V(I,J))
40 CONTINUE
50 CONTINUE
where
A is a
complex
array of dimension
$\left({\mathbf{IA}},{\mathbf{N}}\right)$,
R is a
complex
array of dimension (
N),
V is a
complex
array of dimension
$\left({\mathbf{IV}},{\mathbf{M}}\right)$,
WORK is a
complex
array of length at least
$\left({\mathbf{N}}\times \left({\mathbf{N}}+2\right)\right)$,
LWORK is its actual length, and
RWORK is a real array of length at least
$\left(2\times {\mathbf{N}}\right)$.
F02BEF
Withdrawn at Mark 18.
Replaced by
F08JJF (DSTEBZ) and
F08JKF (DSTEIN).
Old: CALL F02BEF(N,D,ALB,UB,EPS,EPS1,E,E2,M,MM,R,V,IV,ICOUNT,X,C, &
IFAIL)
New: CALL DSTEBZ('V','B',N,ALB,UB,0,0,EPS1,D,E(2),MM,NSPLIT,R,IBLOCK, &
ISPLIT,X,IWORK,INFO)
CALL DSTEIN(N,D,E(2),MM,R,IBLOCK,ISPLIT,V,IV,X,IWORK,IFAILV,INFO)
where
NSPLIT is an integer variable,
IBLOCK,
ISPLIT and
IFAILV are integer arrays of length at least
$\left({\mathbf{N}}\right)$, and
IWORK is an integer array of length at least
$\left(3\times {\mathbf{N}}\right)$.
F02BFF
Withdrawn at Mark 18.
Replaced by
F08JJF (DSTEBZ).
Old: CALL F02BFF(D,E,E2,N,M1,M2,MM12,EPS1,EPS,EPS2,IZ,R,WU)
New: CALL DSTEBZ('I','E',N,0.0D0,0.0D0,M1,M2,EPS1,D,E(2),M, &
NSPLIT,R,IBLOCK,ISPLIT,WORK,IWORK,INFO)
where
M and
NSPLIT are integer variables,
IBLOCK and
ISPLIT are integer arrays of length at least
$\left({\mathbf{N}}\right)$,
WORK is a real array of length at least
$\left(4\times {\mathbf{N}}\right)$, and
IWORK is an integer array of length at least
$\left(3\times {\mathbf{N}}\right)$.
F02BJF
Withdrawn at Mark 23.
Replaced by
F08WAF (DGGEV).
Old: CALL F02BJF(N,A,LDA,B,LDB,EPS1,ALFR,ALFI,BETA,MATV,V,LDV,ITER,IFAIL)
New: IF (MATV) THEN
JOBVR = 'V'
ELSE
JOBVR = 'N'
ENDIF
CALL DGGEV('N',JOBVR,N,A,LDA,B,LDB,ALFR,ALFI,BETA,VL,LDVL, &
VR,LDVL,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
F02BKF
Withdrawn at Mark 18.
Replaced by
F08PKF (DHSEIN).
Old: CALL F02BKF(N,M,H,IH,RI,C,RR,V,IV,B,IB,U,W,IFAIL)
New: CALL DHSEIN('R','Q','N',C,N,H,IH,RR,RI,V,IV,V,IV,M,M2,B,IFAILR, &
IFAILR,INFO)
where
M2 is an integer variable, and
IFAILR is an integer array of length at least
$\left({\mathbf{N}}\right)$.
Note that the array
C may be modified by
F08PKF (DHSEIN) if there are complex conjugate pairs of eigenvalues.
F02BLF
Withdrawn at Mark 18.
Replaced by
F08PXF (ZHSEIN).
Old: CALL F02BLF(N,M,HR,IHR,HI,IHI,RI,C,RR,VR,IVR,VI,IVI,BR,IBR,BI, &
IBI,U,W,IFAIL)
New: DO 20 J = 1, N
R(J) = CMPLX(RR(J),RI(J),KIND=nag_wp)
DO 10 I = 1, N
H(I,J) = CMPLX(HR(I,J),HI(I,J),KIND=nag_wp)
10 CONTINUE
20 CONTINUE
CALL ZHSEIN('R','Q','N',C,N,H,IH,R,V,IV,V,IV,M,M2,WORK,RWORK, &
IFAILR,IFAILR,INFO)
DO 30 I = 1, N
RR(I) = REAL(R(I))
30 CONTINUE
DO 50 J = 1, M
DO 40 I = 1, N
VR(I,J) = REAL(V(I,J))
VI(I,J) = AIMAG(V(I,J))
40 CONTINUE
50 CONTINUE
where
H is a
complex
array of dimension
$\left({\mathbf{IH}},{\mathbf{N}}\right)$,
R is a
complex
array of length (
N),
V is a
complex
, array of dimension
$\left({\mathbf{IV}},{\mathbf{M}}\right)$,
M2 is an integer variable,
WORK is a
complex
array of length at least (
${\mathbf{N}}\times {\mathbf{N}}$),
RWORK is a real array of length at least
$\left({\mathbf{N}}\right)$, and
IFAILR is an integer array of length at least
$\left({\mathbf{N}}\right)$.
F02EAF
Withdrawn at Mark 23.
Replaced by
F08PAF (DGEES).
Old: CALL F02EAF(JOB,N,A,LDA,WR,WI,Z,LDZ,WORK,LWORK,IFAIL)
New: LOGICAL SELECT
EXTERNAL SELECT
...
IF (JOB.EQ.'N') THEN
JOBVS = 'N'
ELSE
JOBVS = 'V'
END IF
CALL DGEES(JOBVS,'N',SELECT,N,A,LDA,0,WR,WI,Z,LDZ,WORK, &
LWORK,BWORK,INFO)
IF (INFO.EQ.0) THEN
....
LOGICAL FUNCTION SELECT(AR,AI)
REAL (KIND=nag_wp) :: AR, AI
SELECT = .TRUE.
RETURN
ENDK
F02EBF
Withdrawn at Mark 23.
Replaced by
F08NAF (DGEEV).
Old: CALL F02EBF(JOB,N,A,LDA,WR,WI,VR,LDVR,VI,LDVI,WORK,LWORK, &
IFAIL)
New: IF (JOB.EQ.'N') THEN
JOBVR = 'N'
ELSE
JOBVR = 'V'
END IF
CALL DGEEV('N',JOBVR,N,A,LDA,WR,WI,VL,LDVL,VR1,LDVR1, &
WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
! Eigenvector information is stored differently.
! For complex conjugate pairs (that is, corresponding
! to the jth eigenvector such that WI(j) is nonzero,
! and WI(j) = WI(j+1)), the real and imaginary parts
! of the first of the pair of eigenvectors are stored
! as consecutive columns of VR1: VR1(:,j), VR1(:,j+1).
! The second in the pair is just the conjugate of the
! first, so can be constructed by negating the
! elements in VR1(:,j+1).
! If the jth eigenvector is real (WI(j)=0), the
! corresponding real eigenvector is stored in the
! jth column of VR1, VR1(1:N,j).
F02FAF
Withdrawn at Mark 23.
Replaced by
F08FAF (DSYEV).
Old: CALL F02FAF(JOB,UPLO,N,A,LDA,W,WORK,LWORK,IFAIL)
New: CALL DSYEV(JOB,UPLO,N,A,LDA,W,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02FCF
Withdrawn at Mark 23.
Replaced by
F08FBF (DSYEVX).
Old: CALL F02FCF(JOB,RANGE,UPLO,N,A,LDA,WL,WU,IL,IU,MEST,M, &
W,Z,LDZ,WORK,LWORK,IWORK,IFAIL)
New: CALL DSYEVX(JOB,RANGE,UPLO,N,A,LDA,WL,WU,IL,IU,ABSTOL,M, &
W,Z,LDZ,WORK,LWORK,IWORK,JFAIL,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02FDF
Withdrawn at Mark 23.
Replaced by
F08SAF (DSYGV).
Old: CALL F02FDF(ITYPE,JOB,UPLO,N,A,LDA,B,LDB,W,WORK,LWORK,IFAIL)
New: CALL DSYGV(ITYPE,JOB,UPLO,N,A,LDA,B,LDB,W,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02FHF
Withdrawn at Mark 23.
Replaced by
F08UAF (DSBGV).
Old: CALL F02FHF(N,MA,A,LDA,MB,B,LDB,D,WORK,LWORK,IFAIL)
New: CALL DSBGV('N','U',N,MA,MB,A,LDA,B,LDB,D,Z,LDZ,WORK,INFO)
IF (INFO.EQ.0) THEN
...
The order of eigenvalues in D changes from descending to ascending.
The minimum workspace requirement has changed to become $\mathtt{LWORK}=3\times {\mathbf{N}}$
F02GAF
Withdrawn at Mark 23.
Replaced by
F08PNF (ZGEES).
Old: CALL F02GAF(JOB,N,A,LDA,W,Z,LDZ,RWORK,WORK,LWORK,IFAIL)
New: LOGICAL BWORK(1)
LOGICAL SELECT
EXTERNAL SELECT
...
IF (JOB.EQ.'N') THEN
JOBVS = 'N'
ELSE
JOBVS = 'V'
END IF
CALL ZGEES(JOBVS,'N',SELECT,N,A,LDA,0,W,Z,LDZ, &
WORK,LWORK,RWORK,BWORK,INFO)
IF (INFO.NE.0) THEN
...
LOGICAL FUNCTION SELECT(C)
COMPLEX*16 C
SELECT = .TRUE.
RETURN
END
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02GBF
Withdrawn at Mark 23.
Replaced by
F08NNF (ZGEEV).
Old: CALL F02GBF(JOB,N,A,LDA,W,V,LDV,RWORK,WORK,LWORK,IFAIL)
New: CALL ZGEEV('N',JOB,N,A,LDA,W,VL,LDVL,V,LDV, &
WORK,LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
...
F02GJF
Withdrawn at Mark 23.
Replaced by
F08WNF (ZGGEV).
Old: CALL F02GJF(N,AR,LDAR,AI,LDAI,BR,LDBR,BI,LDBI,EPS1,ALFR, &
ALFI,BETA,MATV,VR,LDVR,VI,LDVI,ITER,IFAIL)
New: IF (MATV) THEN
JOBVR = 'V'
ELSE
JOBVR = 'N'
END IF
! Set A=AR + iAI and B = BR+iBI
CALL ZGGEV('N',JOBVR,N,A,LDA,B,LDB,ALPHA,BETA1,VL,LDVL, &
V,LDV,WORK,LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
...
Note that the separated real and imaginary parts of input and output data in
F02GJF has been replaced by combined complex types in
F08WNF (ZGGEV).
F02HAF
Withdrawn at Mark 23.
Replaced by
F08FNF (ZHEEV).
Old: CALL F02HAF(JOB,UPLO,N,A,LDA,W,RWORK,WORK,LWORK,IFAIL)
New: CALL ZHEEV(JOB,UPLO,N,A,LDA,W,WORK,LWORK,RWORK,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02HCF
Withdrawn at Mark 23.
Replaced by
F08FPF (ZHEEVX).
Old: CALL F02HCF(JOB,RANGE,UPLO,N,A,LDA,WL,WU,IL,IU,MEST,M, &
W,Z,LDZ,WORK,LWORK,RWORK,IWORK,IFAIL)
New: CALL ZHEEVX(JOB,RANGE,UPLO,N,A,LDA,WL,WU,IL,IU,ABSTOL,M, &
W,Z,LDZ,WORK,LWORK,RWORK,IWORK,JFAIL,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02HDF
Withdrawn at Mark 23.
Replaced by
F08SNF (ZHEGV).
Old: CALL F02HDF(ITYPE,JOB,UPLO,N,A,LDA,B,LDB,W,RWORK,WORK, &
LWORK,IFAIL)
New: CALL ZHEGV(ITYPE,JOB,UPLO,N,A,LDA,B,LDB,W,WORK,LWORK, &
RWORK,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F02SDF
Scheduled for withdrawal at Mark 27.
Replaced by
F12AGF and
F12FGF.
Old: CALL F02SDF(N,MA+1,MB+1,A,LDA,B,LDB,SYM,RELEP,RMU,VEC,D,IWORK,WORK, &
LWORK,IFAIL)
New: LICOMM = 140
LCOMM = 3*N + 3*NCV*NCV + 6*NCV + 60
ALLOCATE (COMM(LCOMM),DR(NCV),DI(NCV),RESID(N),V(N,NCV), &
ICOMM(LICOMM))
! B is symmetric definite:
IF (B_symm_def) THEN
CALL F12AFF(N,1,NCV,ICOMM,LICOMM,COMM,LCOMM,IFAIL)
CALL F12ADF('Generalized',ICOMM,COMM,IFAIL)
CALL F12ADF('Shifted Inverse',ICOMM,COMM,IFAIL)
CALL F12AGF(KL,KU,A,LDA,B,LDB,RMU,0.0,NCONV,DR,DI,V,N,RESID, &
V,LDV,COMM,ICOMM,IFAIL)
VEC(1:N) = V(1:N,1)
ELSE
CALL F12AAF(N,NEV,NCV,ICOMM,LICOMM,COMM,LCOMM,IFAIL)
ALLOCATE(C(LDA,N),IPIV(N),X(N),MX(N))
C = A  RMU*B
CALL DGBTRF(N,N,KL,KU,C,LDA,IPIV,INFO)
IREVCM = 0
DO WHILE (IREVCM/=5)
CALL F12ABF(IREVCM,RESID,V,LDV,X,MX,NSHIFT,COMM,ICOMM,IFAIL)
IF (IREVCM==1 .OR. IREVCM==1) THEN
! Perform x < OP*x = inv[ASIGMA*B]*Bx.
CALL DGBMV('N',N,N,KL,KU,ONE,B,LDB,X,1,ZERO,MX,1)
X(1:N) = MX(1:N)
CALL DGBTRS('N',N,KL,KU,1,C,LDA,IPIV,X,N,INFO)
END IF
END DO
! Postprocess using F12ACF to compute eigenvalue.
CALL F12ACF(NCONV,DR,DI,V,LDV,RMU,0.0,RESID,V,N,COMM,ICOMM,IFAIL)
LR = DR(1)/(DR(1)**2+DI(1)**2) + RMU
END IF
F02SWF
Withdrawn at Mark 18.
Replaced by
F08KEF (DGEBRD).
The following replacement ignores the triangular structure of
A, and therefore references the subdiagonal elements of
A; however on many machines the replacement code will be more efficient.
Old: CALL F02SWF(N,A,LDA,D,E,NCOLY,Y,LDY,WANTQ,Q,LDQ,IFAIL)
New: DO 20 J = 1, N
DO 10 I = J+1, N
A(I,J) = 0.0D0
10 CONTINUE
20 CONTINUE
CALL DGEBRD(N,N,A,LDA,D,E,TAUQ,TAUP,WORK,LWORK,INFO)
IF (WANTQ) THEN
CALL F06QFF('L',N,N,A,LDA,Q,LDQ)
CALL DORGBR('Q',N,N,N,Q,LDQ,TAUQ,WORK,LWORK,INFO)
END IF
IF (NCOLY.GT.0) THEN
CALL DORMBR('Q','L','T',N,NCOLY,N,A,LDA,TAUQ,Y,LDY, &
WORK,LWORK,INFO)
END IF
where
TAUQ,
TAUP and
WORK are real arrays of length at least
$\left({\mathbf{N}}\right)$, and
LWORK is the actual length of
WORK.
F02SXF
Withdrawn at Mark 18.
Replaced by
F08KFF (DORGBR) and
F08KGF (DORMBR).
The following replacement is valid only if the previous call to
F02SWF has been replaced by a call to
F08KEF (DGEBRD) as shown above.
Old: CALL F02SXF(N,A,LDA,NCOLY,Y,LDY,WORK,IFAIL)
New: IF (NCOLY.EQ.0) THEN
CALL DORGBR('P',N,N,N,A,LDA,TAUP,WORK,LWORK,INFO)
ELSE
CALL DORMBR('P','L','T',N,NCOLY,N,A,LDA,TAUP,Y,LDY,WORK, &
LWORK,INFO)
END IF
F02SYF
Withdrawn at Mark 18.
Replaced by
F08MEF (DBDSQR).
Old: CALL F02SYF(N,D,E,NCOLB,B,LDB,NROWY,Y,LDY,NCOLZ,Z,LDZ,WORK, &
IFAIL)
New: CALL DBDSQR('U',N,NCOLZ,NROWY,NCOLB,D,E,Z,LDZ,Y,LDY,B,LDB,WORK, &
INFO)
where
WORK is a real array of length at least
$\left(4\times \left({\mathbf{N}}1\right)\right)$ unless
${\mathbf{NCOLB}}={\mathbf{NROWY}}={\mathbf{NCOLZ}}=0$.
F02UWF
The following replacement ignores the triangular structure of A, and therefore references the subdiagonal elements of A; however on many machines the replacement code will be more efficient.
Old: CALL F02UWF(N,A,LDA,D,E,NCOLY,Y,LDY,WANTQ,Q,LDQ,WORK,IFAIL)
New: DO 20 J = 1, N
DO 10 I = J+1, N
A(I,J) = 0.0D0
10 CONTINUE
20 CONTINUE
CALL ZGEBRD(N,N,A,LDA,D,E,TAUQ,TAUP,WORK,LWORK,INFO)
IF (WANTQ) THEN
CALL F06TFF('L',N,N,A,LDA,Q,LDQ)
CALL ZUNGBR('Q',N,N,N,Q,LDQ,TAUQ,WORK,LWORK,INFO)
END IF
IF (NCOLY.GT.0) THEN
CALL ZUNMBR('Q','L','C',N,NCOLY,N,A,LDA,TAUQ,Y,LDY, &
WORK,LWORK,INFO)
END IF
where
TAUQ and
TAUP are
complex
arrays of length at least
$\left({\mathbf{N}}\right)$, and
LWORK is the actual length of
WORK.
F02UXF
Withdrawn at Mark 18.
Replaced by
F08KTF (ZUNGBR) or
F08KUF (ZUNMBR).
The following replacement is valid only if the previous call to
F02UWF has been replaced by a call to
F08KSF (ZGEBRD) as shown above.
Old: CALL F02UXF(N,A,LDA,NCOLY,Y,LDY,RWORK,CWORK,IFAIL)
New: IF (NCOLY.EQ.0) THEN
CALL ZUNGBR('P',N,N,N,A,LDA,TAUP,CWORK,LWORK,INFO)
ELSE
CALL ZUNMBR('P','L','C',N,NCOLY,N,A,LDA,TAUP,Y,LDY,CWORK, &
LWORK,INFO)
END IF
where
LWORK is the actual length of
CWORK.
F02UYF
Withdrawn at Mark 18.
Replaced by
F08MSF (ZBDSQR).
Old: CALL F02UYF(N,D,E,NCOLB,B,LDB,NROWY,Y,LDY,NCOLZ,Z,LDZ,WORK,
IFAIL) &
New: CALL ZBDSQR('U',N,NCOLZ,NROWY,NCOLB,D,E,Z,LDZ,Y,LDY,B,LDB,WORK, &
INFO)
where
WORK is a real array of length at least
$\left(4\times \left({\mathbf{N}}1\right)\right)$ unless
${\mathbf{NCOLB}}={\mathbf{NROWY}}={\mathbf{NCOLZ}}=0$.
F02WDF
Scheduled for withdrawal at Mark 27.
Replaced by
F02WUF and
F08AEF (DGEQRF).
The Householder
$QU$ factorization part of the functionality can be achieved with
F08AEF (DGEQRF). The action
${Q}^{\mathrm{T}}b$ can be computed by a call to
F08AGF (DORMQR). The orthogonal matrix
$Q$ can be explicitly constructed, inplace, by a subsequent call to
F08AFF (DORGQR).
If the singular value decomposition (SVD) of
$U$ is required, the result of
F08AEF (DGEQRF) must be fed to
F02WUF, remembering that the first orthogonal matrix of the SVD is called
$Q$ in
F02WUF and
$R$ in
F02WDF
Old: IFAIL = 0
CALL F02WDF(M,N,A,LDA,WANTB,B,TOL,SVD,IRANK,Z,SV,WANTR,R, &
LDR,WANTPT,PT,LDPT,WORK,LWORK,IFAIL)
New: LWORK = 1
CALL DGEQRF(M,N,A,LDA,Z,WORK,LWORK,INFO)
LWORK = ANINT(WORK(1))
DEALLOCATE (WORK)
ALLOCATE (WORK(LWORK))
CALL DGEQRF(M,N,A,LDA,Z,WORK,LWORK,INFO)
NCOLB = 1
IF (WANTB) THEN
CALL DORMQR('L','T',M,NCOLB,N,A,LDA,Z,B,M,WORK,LWORK,INFO)
END IF
IF (.NOT. SVD) THEN
! construct Q explicitly, overwrites A
CALL DORGQR(M,M,A,LDA,Z,WORK,LWORK,INFO)
ELSE
! SVD factorization, PT overwrites A
DEALLOCATE (WORK)
ALLOCATE (WORK(5*N))
CALL F02WUF(N,A,LDA,NCOLB,B,M,WANTR,R,LDR,SV,WANTPT,WORK,IFAIL)
! compute rank
IRANK = F06KLF(N,SV,1,TOL)
END IF
F02WEF
Withdrawn at Mark 23.
Replaced by
F08KBF (DGESVD).
Old: CALL F02WEF(M,N,A,LDA,NCOLB,B,LDB,WANTQ,Q,LDQ,SV,WANTP, &
PT,LDPT,WORK,IFAIL)
New: IF (WANTQ) THEN
JOBU = 'A'
ELSE
JOBU = 'N'
END IF
IF (WANTP) THEN
JOBVT = 'A'
ELSE
JOBVT = 'N'
END IF
LWORK = 1
CALL DGESVD(JOBU,JOBVT,M,N,A,LDA,SV,Q,LDQ,PT,LDPT,WORK,LWORK,INFO)
LWORK = ANINT(WORK(1))
ALLOCATE (W(LWORK))
CALL DGESVD(JOBU,JOBVT,M,N,A,LDA,SV,Q,LDQ,PT,LDPT,W,LWORK,INFO)
DEALLOCATE (W)
WORK must be a onedimensional real array of length at least
lwork given by:
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,3\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right)+\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right),5\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right)\right)$
Larger values of
LWORK, up to some optimal value, may improve performance.
Please note that the facility to return
${Q}^{\mathrm{T}}B$ is not provided so arguments
$\mathrm{WANTB}$ and
$\mathrm{B}$ are not required. Instead,
F08KBF (DGESVD) has an option to return the entire
${\mathbf{M}}*{\mathbf{M}}$ orthogonal matrix
$Q$, referred to as
${\mathbf{U}}$ in its documentation, through its 8th argument.
F02XEF
Withdrawn at Mark 23.
Replaced by
F08KPF (ZGESVD).
Old: CALL F02XEF(M,N,A,LDA,NCOLB,B,LDB,WANTQ,Q,LDQ,SV,WANTP, &
PH,LDPH,RWORK,CWORK,IFAIL)
New: IF (WANTQ) THEN
JOBU = 'A'
ELSE
JOBU = 'N'
END IF
IF (WANTP) THEN
JOBVT = 'A'
ELSE
JOBVT = 'N'
END IF
LWORK = 1
CALL ZGESVD(JOBU,JOBVT,M,N,A,LDA,SV,Q,LDQ,PT,LDPT,WORK, &
LWORK,RWORK,INFO)
LWORK = ANINT(WORK(1))
ALLOCATE (W(LWORK))
CALL ZGESVD(JOBU,JOBVT,M,N,A,LDA,SV,Q,LDQ,PT,LDPT,W, &
LWORK,RWORK,INFO)
DEALLOCATE (W)
WORK must be a onedimensional
complex
array of length at least
lwork given by
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,2\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right)+\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right)\right)$
WORK must be a onedimensional real array of length
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,5\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right)\right)$.
Larger values of
LWORK, up to some optimal value, may improve performance.
Please note that the facility to return
${Q}^{\mathrm{H}}B$ is not provided so parameters
WANTB
and
$\mathrm{B}$ are not required. Instead,
F08KPF (ZGESVD) has an option to return the entire
${\mathbf{M}}*{\mathbf{M}}$ unitary matrix
$Q$, referred to as
${\mathbf{U}}$ in its documentation, through its 8th argument.
F03 – Determinants
F03AAF
Withdrawn at Mark 25.
Replaced by
F07ADF (DGETRF) and
F03BAF.
Old: IFAIL = 0
CALL F03AAF(A,LDA,N,DET,WKSPCE,IFAIL)
New: INTEGER IPIV(N)
...
CALL DGETRF(N,N,A,LDA,IPIV,INFO)
IFAIL = 0
CALL F03BAF(N,A,LDA,IPIV,D,ID,IFAIL)
DET = D*2**ID
Note: the real array WKSPCE has been replaced by the integer array
IPIV for holding the pivots of the factorization.
F03ABF
Withdrawn at Mark 25.
Replaced by
F07FDF (DPOTRF) and
F03BFF.
Old: IFAIL = 0
CALL F03ABF(A,LDA,N,DET,WKSPCE,IFAIL)
New: CALL DPOTRF('U',N,A,LDA,INFO)
IFAIL = 0
CALL F03BFF(N,A,LDA,D,ID,IFAIL)
DET = D*2**ID
Note: the real array WKSPCE is no longer required. Also the upper triangular part of
$A$, stored in
A, has been replaced here by its Cholesky factorization; the lower triangular part of
$A$ can be used and overwritten by replacing 'U' by 'L' in the call to DPOTRF above.
F03ACF
Withdrawn at Mark 25.
Replaced by
F07HDF (DPBTRF) and
F03BHF.
Old: IFAIL = 0
CALL F03ACF(A,LDA,N,M,DET,RL,LDRL,M1,IFAIL)
New: CALL DPBTRF('L',N,M,AB,LDAB,INFO)
IFAIL = 0
CALL F03BHF('L',N,KD,AB,LDAB,D,ID,IFAIL)
DET = D*2**ID
Note: the storage of
$A$ in arrays A and AB is different. In fact
${\mathbf{AB}}\left(\mathit{i},\mathit{j}\right)=\mathrm{A}\left(\mathit{j},\mathit{i}\right)$, for
$\mathit{i}=1,2,\dots ,m$ and
$\mathit{j}=\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,im\right),\dots ,i$ which conforms to the LAPACK banded storage scheme. The factorization is returned in
AB rather than in a separate array (RL). The upper part of matrix
$A$ can also be stored in
AB on input to
DPBTRF.
F03ADF
Withdrawn at Mark 25.
Replaced by
F07ARF (ZGETRF) and
F03BNF.
Old: IFAIL = 0
CALL F03ADF(A,LDA,N,DETR,DETI,WKSPCE,IFAIL)
New: INTEGER IPIV(N)
...
CALL ZGETRF(N,N,A,LDA,IPIV,INFO)
IFAIL = 0
CALL F03BNF(N,A,LDA,IPIV,D,ID,IFAIL)
DETR = REAL(D)*2**ID(1)
DETI = AIMAG(D)*2**ID(2)
Note: the real array WKSPCE has been replaced by the integer array
IPIV for holding the pivots of the factorization. The real and imaginary parts of the determinant are independently scaled.
F03AEF
Withdrawn at Mark 25.
Replaced by
F07FDF (DPOTRF) and
F03BFF.
Old: IFAIL = 0
CALL F03AEF(N,A,LDA,P,D1,ID,IFAIL)
New: CALL DPOTRF('U',N,A,LDA,INFO)
IFAIL = 0
CALL F03BFF(N,A,LDA,D1,ID,IFAIL)
Note: the upper triangular part of
$A$, stored in
A, has been replaced here by its Cholesky factorization; the lower triangular part of
$A$ can be used and overwritten by replacing
${\mathbf{UPLO}}=\text{'U'}$ by
${\mathbf{UPLO}}=\text{'L'}$ in the call to
F07FDF (DPOTRF) above.
F03AFF
Withdrawn at Mark 25.
Replaced by
F07ADF (DGETRF) and
F03BAF.
Old: IFAIL = 0
CALL F03AFF(N,EPS,A,LDA,D1,ID,P,IFAIL)
New: INTEGER IPIV(N)
...
CALL DGETRF(N,N,A,LDA,IPIV,INFO)
IFAIL = 0
CALL F03BAF(N,A,LDA,IPIV,D1,ID,IFAIL)
Note: real array P has been replaced by the integer array
IPIV for holding the pivots of the factorization.
F04 – Simultaneous Linear Equations
F04AAF
Withdrawn at Mark 23.
Replaced by
F07AAF (DGESV).
Old: CALL F04AAF(A,LDA,B,LDB,N,M,C,LDC,WKSPCE,IFAIL)
New: CALL DGESV(N,M,A,LDA,IPIV,B,LDB,INFO)
IF (INFO.EQ.0) THEN
! Answer now in B
...
F04ACF
Withdrawn at Mark 23.
Replaced by
F07HAF (DPBSV).
Old: CALL F04ACF(A,LDA,B,LDB,N,M,IR,C,LDC,RL,LDRL,M1,IFAIL)
New: CALL DPBSV('U',N,M,IR,AB,LDAB,B,LDB,INFO)
IF (INFO.EQ.0) THEN
! A and AB are stored differently.
! AB may be regarded as the transpose of A, with the 'U' option.
! Thus LDAB might be M+1
! Answer now in B
...
F04ADF
Withdrawn at Mark 23.
Replaced by
F07ANF (ZGESV).
Old: CALL F04ADF(A,LDA,B,LDB,N,M,C,LDC,WKSPCE,IFAIL)
New: CALL ZGESV(N,M,A,LDA,IPIV,B,LDB,INFO)
IF (INFO.EQ.0) THEN
! Answer now in B
...
F04AFF
Withdrawn at Mark 25.
There is no replacement for this routine.
The factorization and solution of a positive definite linear system can be handled by calls to routines from
Chapter F07, e.g.,
F07FBF (DPOSVX).
For example:
Old: IFAIL = 0
CALL F03AEF(N,A,LDA,P,D1,ID,IFAIL)
CALL F04AFF(N,NRHS,A,LDA,P,B,LDB,EPS,X,LDX,BB,LDBB,K,IFAIL)
New: CALL DPOSVX('equil','upper',N,NRHS,A,LDA,AF,LDAF,'Yes',P,B, &
LDB,X,LDX,RCOND,FERR,BERR,WORK,IWORK,INFO)
IFAIL = 0
CALL F03BFF(N,A,LDA,D1,ID,IFAIL)
F04AGF
Withdrawn at Mark 25.
There is no replacement for this routine.
The factorization and solution of a positive definite linear system can be handled by calls to routines from
Chapter F07, e.g.,
F07FAF (DPOSV).
For example:
Old: IFAIL = 0
CALL F03AEF(N,A,LDA,P,D1,ID,IFAIL)
CALL F04AGF(N,NRHS,A,LDA,P,B,LDB,X,LDX)
New: CALL DPOSV('upper',N,NRHS,A,LDA,B,LDB,INFO)
IFAIL = 0
CALL F03BFF(N,A,LDA,D1,ID,IFAIL)
F04AHF
Withdrawn at Mark 25.
There is no replacement for this routine.
The factorization and solution of a real general linear system can be handled by calls to routines from the
Chapter F07, e.g.,
F07ABF (DGESVX).
For example:
Old: IFAIL = 0
CALL F03AFF(N,EPS,A,LDA,D1,ID,P,IFAIL)
CALL F04AHF(N,NRHS,A,LDA,AA,LDAA,P,B,LDB,EPS,X,LDX,BB, &
LDBB,K,IFAIL)
New: CALL DGESVX('Equil','No trans',N,NRHS,A,LDA,AA,LDAA,IPIV, &
'Yes',R,C,B,LDB,X,LDX,RCOND,FERR,BERR,WORK, &
IWORK,INFO)
IFAIL = 0
CALL F03BAF(N,A,LDA,IPIV,D1,ID,IFAIL)
F04AJF
Withdrawn at Mark 25.
There is no replacement for this routine.
The factorization and solution of a real general linear system can be handled by calls to routines from
Chapter F07, e.g.,
F07AAF (DGESV).
For example:
Old: IFAIL = 0
CALL F03AFF(N,EPS,A,LDA,D1,ID,P,IFAIL)
CALL F04AJF(N,NRHS,A,LDA,P,B,LDB)
New: CALL DGESV(N,NRHS,A,LDA,IPIV,B,LDB,INFO)
IFAIL = 0
CALL F03BAF(N,A,LDA,IPIV,D1,ID,IFAIL)
F04ANF
Old: CALL F04ANF(M,N,QR,IQR,ALPHA,IPIV,B,X,Z)
New: CALL DCOPY(N,ALPHA,1,QR,IQR+1)
CALL DORMQR('L','T',M,1,N,QR,IQR,Y,B,M,Z,N,INFO)
CALL DTRSV('U','N','N',N,QR,IQR,B,1)
D0 10 I = 1, N
X(IPIV(I)) = B(I)
10 CONTINUE
where
Y must be the same real array as was used as the seventh argument in the previous call of
F01AXF.
This replacement is valid only if the previous call to
F01AXF has been replaced by a call to
F08BEF (DGEQPF) as shown above.
F04ARF
Withdrawn at Mark 23.
Replaced by
F07AAF (DGESV).
Old: CALL F04ARF(A,LDA,B,N,C,WKSPCE,IFAIL)
New: CALL DGESV(N,1,A,LDA,IPIV,B,N,INFO)
IF (INFO.EQ.0) THEN
! Answer now in B
...
F04AYF
Withdrawn at Mark 18.
Replaced by
F07AEF (DGETRS).
Old: CALL F04AYF(N,IR,A,IA,P,B,IB,IFAIL)
New: CALL DGETRS('No Transpose',N,IR,A,IA,IPIV,B,IB,INFO)
It is assumed that the matrix has been factorized by a call of
F07ADF (DGETRF).
IPIV is an integer array of length
N, and the array P is no longer required.
F04EAF
Withdrawn at Mark 23.
Replaced by
F07CAF (DGTSV).
Old: CALL F04EAF(N,D,DU,DL,B,IFAIL)
New: CALL DGTSV(N,1,DL(2),D,DU(2),B,N,INFO)
IF (INFO.EQ.0) THEN
! Answer now in B
...
F04FAF
Withdrawn at Mark 23.
Replaced by
F07JAF (DPTSV), or
F07JDF (DPTTRF) and
F07JEF (DPTTRS).
Old: CALL F04FAF(JOB,N,D,E,B,IFAIL)
New: CALL DPTSV(N,1,D,E(2),B,1,INFO)
...
F04JAF
Withdrawn at Mark 23.
Replaced by
F08KAF (DGELSS).
Old: CALL F04JAF(M,N,A,LDA,B,TOL,SIGMA,IRANK,WORK,LWORK,IFAIL)
New: CALL DGELSS(M,N,1,A,LDA,B,1,S,RCOND,IRANK,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
! Answer now in B
! Singular values now in S, not WORK.
! The standard error is not computed
...
The minimum workspace requirement has changed from $4\times {\mathbf{N}}$ to $3\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{N}},{\mathbf{M}}\right)+\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(2\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{N}},{\mathbf{M}}\right),\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right),1\right)$.
F04JDF
Withdrawn at Mark 23.
Replaced by
F08KAF (DGELSS).
Old: CALL F04JDF(M,N,A,LDA,B,TOL,SIGMA,IRANK,WORK,LWORK,IFAIL)
New: CALL DGELSS(M,N,1,A,LDA,B,1,S,RCOND,IRANK,WORK,LWORK,INFO)
! Note workspace requirements are different.
IF (INFO.EQ.0) THEN
! Answer now in B
! Singular values now in S, not WORK.
! The standard error is not computed
...
The minimum workspace requirement has changed from $\mathrm{N}\times \left(\mathrm{M}+4\right)$ to $3\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{N}},{\mathbf{M}}\right)+\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(2\times \mathrm{min}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{N}},{\mathbf{M}}\right),\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left({\mathbf{M}},{\mathbf{N}}\right),1\right)$.
F04JLF
Withdrawn at Mark 23.
Replaced by
F08ZBF (DGGGLM).
Old: CALL F04JLF(M,N,P,A,LDA,B,LDB,D,X,Y,WORK,LWORK,IFAIL)
New: CALL DGGGLM(M,N,P,A,LDA,B,LDB,D,X,Y,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F04JMF
Withdrawn at Mark 23.
Replaced by
F08ZAF (DGGLSE).
Old: CALL F04JMF(M,N,P,A,LDA,B,LDB,C,D,X,WORK,LWORK,IFAIL)
New: CALL DGGLSE(M,N,P,A,LDA,B,LDB,C,D,X,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
The minimum workspace requirement has not increased but the requirement for optimal performance might be different. The workspace query mechanism ($\mathrm{LWORK}=1$) should be used to determine the requirement for optimal performance.
F04KLF
Withdrawn at Mark 23.
Replaced by
F08ZPF (ZGGGLM).
Old: CALL F04KLF(M,N,P,A,LDA,B,LDB,D,X,Y,WORK,LWORK,IFAIL)
New: CALL ZGGGLM(M,N,P,A,LDA,B,LDB,D,X,Y,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
F04KMF
Withdrawn at Mark 23.
Replaced by
F08ZNF (ZGGLSE).
Old: CALL F04KMF(M,N,P,A,LDA,B,LDB,C,D,X,WORK,LWORK,IFAIL)
New: CALL ZGGLSE(M,N,P,A,LDA,B,LDB,C,D,X,WORK,LWORK,INFO)
IF (INFO.EQ.0) THEN
...
F04LDF
Withdrawn at Mark 18.
Replaced by
F07BEF (DGBTRS).
Old: CALL F04LDF(N,M1,M2,IR,A,IA,AL,IL,IN,B,IB,IFAIL)
New: CALL DGBTRS('No Transpose',N,M1,M2,IR,A,IA,IN,B,IB,INFO)
It is assumed that the matrix has been factorized by a call of
F07BDF (DGBTRF). The array AL and its associated dimension parameter IL are no longer required.
F04MAF
Withdrawn at Mark 19.
Replaced by
F11JCF.
Existing programs should be modified to call
F11JCF. The interfaces are significantly different and therefore precise details of a replacement call cannot be given. Please consult the appropriate routine document.
F04MBF
Withdrawn at Mark 19.
Replaced by
F11GDF,
F11GEF and
F11GFF (or
F11JCF or
F11JEF).
If a userdefined preconditioner is required existing programs should be modified to call
F11GDF,
F11GEF and
F11GFF. Otherwise
F11JCF or
F11JEF may be used. The interfaces for these routines are significantly different from that for
F04MBF and therefore precise details of a replacement call cannot be given. Please consult the appropriate routine document.
F04YCF
Scheduled for withdrawal at Mark 26.
Replaced by
F04YDF.
Old: CALL F04YCF(ICASE,N,X,ESTNRM,WORK,IWORK,IFAIL)
New: CALL F04YDF(IREVCM,M,N,X,LDX,Y,LDY,ESTNRM,T,SEED,WORK,IWORK,IFAIL)
F04YDF returns an estimate of the
$1$norm of a rectangular
$M\times N$ matrix, whereas
F04YCF only works with square matrices. The real array X, which was previously used to return matrix–vector products to
F04YCF, has been replaced with two real arrays
${\mathbf{X}}\left({\mathbf{LDX}},*\right)$ and
${\mathbf{Y}}\left({\mathbf{LDY}},*\right)$ which are used to return matrixmatrix products to
F04YDF. Here,
${\mathbf{LDX}}\ge {\mathbf{N}}$,
${\mathbf{LDY}}\ge {\mathbf{M}}$ and the second dimensions of
X and
Y are at least of size
T, where you can choose parameter
T. The sizes of the workspace arrays
WORK and
IWORK have been increased to
${\mathbf{M}}\times {\mathbf{T}}$ and
$2\times {\mathbf{N}}+5\times {\mathbf{T}}+20$ respectively. The integer
SEED provides a seed for the random number generator used by
F04YDF. The integer ICASE has been replaced by
IREVCM, which can take the values
$0$,
$1$ or
$2$. See the routine documentation for
F04YDF further details about the reverse communication interface.
F04ZCF
Scheduled for withdrawal at Mark 26.
Replaced by
F04ZDF.
Old: CALL F04ZCF(ICASE,N,X,ESTNRM,WORK,IFAIL)
New: CALL F04ZDF(IREVCM,M,N,X,LDX,Y,LDY,ESTNRM,T,SEED,WORK,RWORK,IWORK,IFAIL)
F04ZDF returns an estimate of the
$1$norm of a rectangular
$M\times N$ matrix, whereas F04ZCF only works with square matrices. The complex array X, which was previously used to return matrix–vector products to
F04ZCF, has been replaced with two complex arrays
${\mathbf{X}}\left({\mathbf{LDX}},*\right)$ and
${\mathbf{Y}}\left({\mathbf{LDY}},*\right)$ which are used to return matrixmatrix products to
F04ZDF. Here,
${\mathbf{LDX}}\ge {\mathbf{N}}$,
${\mathbf{LDY}}\ge {\mathbf{M}}$ and the second dimensions of
X and
Y are at least of size
T, where you can choose the parameter
T. The sizes of the workspace arrays
WORK and
IWORK have been increased to
${\mathbf{M}}\times {\mathbf{T}}$ and
$2\times {\mathbf{N}}+5\times {\mathbf{T}}+20$ respectively and there is an additional real workspace array
RWORK of size
$2\times {\mathbf{N}}$. The integer
SEED provides a seed for the random number generator used by
F04ZDF. The integer ICASE has been replaced by
IREVCM, which can take the values
$0$,
$1$ or
$2$. See the routine documentation for
F04ZDF for further details about the reverse communication interface.
F11 – Large Scale Linear Systems
F11BAF
Withdrawn at Mark 21.
Replaced by
F11BDF.
Old: CALL F11BAF(METHOD,PRECON,NORM,WEIGHT,ITERM,N,M,TOL,MAXITN, &
ANORM,SIGMAX,MONIT,LWREQ,IFAIL)
New: CALL F11BDF(METHOD,PRECON,NORM,WEIGHT,ITERM,N,M,TOL,MAXITN, &
ANORM,SIGMAX,MONIT,WORK,LWORK,LWREQ,IFAIL)
F11BDF contains two additional parameters as follows:
See the routine document for further information.
F11BBF
Withdrawn at Mark 21.
Replaced by
F11BEF.
Old: CALL F11BBF(IREVCM,U,V,WORK,LWORK,IFAIL)
New: CALL F11BEF(IREVCM,U,V,WGT,WORK,LWORK,IFAIL)
WGT must be a onedimensional real array of length at least
$n$ (the order of the matrix) if weights are to be used in the termination criterion, and
$1$ otherwise. Note that the call to
F11BEF requires the weights to be supplied in
${\mathbf{WGT}}\left(1:n\right)$ rather than
${\mathbf{WORK}}\left(1:n\right)$. The minimum value of the parameter
LWORK may also need to be changed.
F11BCF
Withdrawn at Mark 21.
Replaced by
F11BFF.
Old: CALL F11BCF(ITN,STPLHS,STPRHS,ANORM,SIGMAX,IFAIL)
New: CALL F11BFF(ITN,STPLHS,STPRHS,ANORM,SIGMAX,WORK,LWORK,IFAIL)
F11BFF contains two additional parameters as follows:
 ${\mathbf{WORK}}\left({\mathbf{LWORK}}\right)$ – real array.
 LWORK – integer.
See the routine document for further information.
F11GAF
Withdrawn at Mark 22.
Replaced by
F11GDF.
Old: CALL F11GAF(METHOD,PRECON,SIGCMP,NORM,WEIGHT,ITERM,N,TOL,MAXITN, &
ANORM,SIGMAX,SIGTOL,MAXITS,MONIT,LWREQ,IFAIL)
New: CALL F11GDF(METHOD,PRECON,SIGCMP,NORM,WEIGHT,ITERM,N,TOL,MAXITN, &
ANORM,SIGMAX,SIGTOL,MAXITS,MONIT,LWREQ,WORK,LWORK,IFAIL)
F11GDF contains two additional parameters as follows:
 ${\mathbf{WORK}}\left({\mathbf{LWORK}}\right)$ – real array.
 LWORK – integer.
See the routine document for further information.
F11GBF
Withdrawn at Mark 22.
Replaced by
F11GEF.
Old: CALL F11GBF(IREVCM,U,V,WORK,LWORK,IFAIL)
New: CALL F11GEF(IREVCM,U,V,WGT,WORK,LWORK,IFAIL)
WGT must be a onedimensional real array of length at least
$n$ (the order of the matrix) if weights are to be used in the termination criterion, and
$1$ otherwise. Note that the call to
F11GEF requires the weights to be supplied in
${\mathbf{WGT}}\left(1:n\right)$ rather than
${\mathbf{WORK}}\left(1:n\right)$. The minimum value of the parameter
LWORK may also need to be changed.
F11GCF
Withdrawn at Mark 22.
Replaced by
F11GFF.
Old: CALL F11GCF(ITN,STPLHS,STPRHS,ANORM,SIGMAX,ITS,SIGERR,IFAIL)
New: CALL F11GFF(ITN,STPLHS,STPRHS,ANORM,SIGMAX,ITS,SIGERR, &
WORK,LWORK,IFAIL)
F11GFF contains two additional parameters as follows:
 ${\mathbf{WORK}}\left({\mathbf{LWORK}}\right)$ – real array.
 LWORK – integer.
See the routine document for further information.
G01 – Simple Calculations on Statistical Data
G01AAF
Scheduled for withdrawal at Mark 26.
Replaced by
G01ATF.
Old:
CALL G01AAF(N,X,IWT,WT,XMEAN,S2,S3,S4,XMIN,XMAX,WTSUM,IFAIL)
New:
PN = 0
CALL G01ATF(N,X,IWT,PN,XMEAN,S2,S3,S4,XMIN,XMAX,RCOMM,IFAIL)
IWT = PN
WTSUM = RCOMM(1)
G01CEF
Withdrawn at Mark 18.
Replaced by
G01FAF.
Old: X = G01CEF(P,IFAIL)
New: X = G01FAF('Lowertail',P,IFAIL)
G05 – Random Number Generators
G05CAF
Withdrawn at Mark 22.
Replaced by
G05SAF.
Old: DO 20 I = 1, N
X(I) = G05CAF(X(I))
20 CONTINUE
New: CALL G05SAF(N,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SAF contains information on the base generator being used. This array must have been initialized prior to calling
G05SAF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SAF is likely to be different from those produced by
G05CAF.
G05CBF
Withdrawn at Mark 22.
Replaced by
G05KFF.
Old: CALL G05CBF(I)
New: LSEED = 1
SEED(1) = I
GENID = 1
SUBID = 1
CALL G05KFF(GENID,SUBID,SEED,LSEED,STATE,LSTATE,IFAIL)
The integer array
STATE in the call to
G05KFF contains information on the base generator being used. The base generator is chosen via the integer parameters
GENID and
SUBID. The required length of the array
STATE depends on the base generator chosen. Due to changes in the underlying code a sequence of values produced by using a random number generator initialized via a call to
G05KFF is likely to be different from a sequence produced by a generator initialized by
G05CBF, even if the same value for
I is used.
G05CCF
Withdrawn at Mark 22.
Replaced by
G05KGF.
Old: CALL G05CCF
New: GENID = 1
SUBID = 1
CALL G05KGF(GENID,SUBID,STATE,LSTATE,IFAIL)
The integer array
STATE in the call to
G05KGF contains information on the base generator being used. The base generator is chosen via the integer parameters
GENID and
SUBID. The required length of the array
STATE depends on the base generator chosen.
G05CFF
Withdrawn at Mark 22.
Replaced by
F06DFF.
Old: CALL G05CFF(IA,NI,XA,NX,IFAIL)
New: LSTATE = STATE(1)
CALL F06DFF(LSTATE,STATE,1,CSTATE,1)
The state of the base generator for the group of routines
G05KFF,
G05KGF,
G05KHF,
G05KJF,
G05NCF,
G05NDF,
G05PDF–
G05PZF,
G05RCF–
G05RZF, G05S and G05T can be saved by simply creating a local copy of the array STATE. The first element of the STATE array contains the number of elements that are used by the random number generating routines, therefore either this number of elements can be copied, or the whole array (as defined in the calling program).
G05CGF
Withdrawn at Mark 22.
Replaced by
F06DFF.
Old: CALL G05CGF(IA,NI,XA,NX,IFAIL)
New: LSTATE = CSTATE(1)
CALL F06DFF(LSTATE,CSTATE,1,STATE,1)
The state of the base generator for the group of routines
G05KFF,
G05KGF,
G05KHF,
G05KJF,
G05NCF,
G05NDF,
G05PDF–
G05PZF,
G05RCF–
G05RZF, G05S and G05T can be restored by simply copying back the previously saved copy of the STATE array. The first element of the STATE array contains the number of elements that are used by the random number generating routines, therefore either this number of elements can be copied, or the whole array (as defined in the calling program).
G05DAF
Withdrawn at Mark 22.
Replaced by
G05SQF.
Old: DO 10 I = 1, N
X(I) = G05DAF(AA,BB)
10 CONTINUE
New: A = MIN(AA,BB)
B = MAX(AA,BB)
IFAIL = 0
CALL G05SQF(N,A,B,STATE,X,IFAIL)
The old routine
G05DAF returns a single variate at a time, whereas the new routine
G05SQF returns a vector of
N values in one go. In
G05SQF the minimum value must be held in the parameter
A and the maximum in parameter
B, therefore
${\mathbf{A}}<{\mathbf{B}}$. This was not the case for the equivalent parameters in
G05DAF.
The integer array
STATE in the call to
G05SQF contains information on the base generator being used. This array must have been initialized prior to calling
G05SQF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SQF is likely to be different from those produced by
G05DAF.
G05DBF
Withdrawn at Mark 22.
Replaced by
G05SFF.
Old: DO 10 I = 1, N
X(I) = G05DBF(AA)
10 CONTINUE
New: A = ABS(AA)
IFAIL = 0
CALL G05SFF(N,A,STATE,X,IFAIL)
The old routine
G05DBF returns a single variate at a time, whereas the new routine
G05SFF returns a vector of
N values in one go. In
G05SFF parameter
A must be nonnegative, this was not the case for the equivalent parameter in
G05DBF.
The integer array
STATE in the call to
G05SFF contains information on the base generator being used. This array must have been initialized prior to calling
G05SFF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SFF is likely to be different from those produced by
G05DBF.
G05DCF
Withdrawn at Mark 22.
Replaced by
G05SLF.
Old: DO 10 I = 1, N
X(I) = G05DCF(A,BB)
10 CONTINUE
New: B = ABS(BB)
IFAIL = 0
CALL G05SLF(N,A,B,STATE,X,IFAIL)
The old routine
G05DCF returns a single variate at
a time, whereas the new routine
G05SLF returns a
vector of
N values in one go. In
G05SLF the spread (parameter
A) must be positive, this was not the case for the equivalent parameters
in
G05DCF.
The integer array
STATE in the call to
G05SLF
contains information on the base generator being used. This array must have
been initialized prior to calling
G05SLF with a call
to either
G05KFF or
G05KGF.
The required length of the array
STATE
will depend on the base generator chosen during initialization.
Due to changes
in the underlying code the sequence of values produced by
G05SLF is likely to be different from those produced by
G05DCF.
G05DDF
Withdrawn at Mark 22.
Replaced by
G05SKF.
Old: DO 10 I = 1, N
X(I) = G05DDF(XMU,SD)
10 CONTINUE
New: VAR = SD**2
IFAIL = 0
CALL G05SKF(N,XMU,VAR,STATE,X,IFAIL)
The old routine
G05DDF returns a single variate at
a time, whereas the new routine
G05SKF returns a
vector of
N values in one go.
G05SKF expects the variance of the Normal distribution
(parameter
VAR), compared to
G05DDF which expected the standard deviation.
The
integer array
STATE in the call to
G05SKF contains information on the base generator being
used. This array must have been initialized prior to calling
G05SKF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during
initialization.
Due to changes in the underlying code the sequence of values
produced by
G05SKF is likely to be different from those
produced by
G05DDF.
G05DEF
Withdrawn at Mark 22.
Replaced by
G05SMF.
Old: DO 10 I = 1, N
X(I) = G05DEF(XMU,SD)
10 CONTINUE
New: VAR = SD**2
IFAIL = 0
CALL G05SMF(N,XMU,VAR,STATE,X,IFAIL)
The old routine
G05DEF returns a single variate at
a time, whereas the new routine
G05SMF returns a
vector of
N values in one go.
G05SMF expects the variance of the corresponding Normal
distribution (parameter
VAR), compared
to
G05DEF which expected the standard deviation.
The integer array
STATE in the call
to
G05SMF contains information on the base generator
being used. This array must have been initialized prior to calling
G05SMF with a call to either
G05KFF
or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen
during initialization.
Due to changes in the underlying code the sequence of
values produced by
G05SMF is likely to be different from
those produced by
G05DEF.
G05DFF
Withdrawn at Mark 22.
Replaced by
G05SCF.
Old: DO 10 I = 1, N
X(I) = G05DFF(XMED,B)
10 CONTINUE
New: SEMIQR = ABS(B)
IFAIL = 0
CALL G05SCF(N,XMED,SEMIQR,STATE,X,IFAIL)
The old routine
G05DFF returns a single variate at
a time, whereas the new routine
G05SCF returns a
vector of
N values in one go.
G05SCF expects the semiinterquartile range (parameter
SEMIQR) to be nonnegative, this was not the
case for the equivalent parameter in
G05DFF.
The integer array
STATE in the call
to
G05SCF contains information on the base generator
being used. This array must have been initialized prior to calling
G05SCF with a call to either
G05KFF
or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen
during initialization.
Due to changes in the underlying code the sequence of
values produced by
G05SCF is likely to be different from
those produced by
G05DFF.
G05DHF
Withdrawn at Mark 22.
Replaced by
G05SDF.
Old: DO 10 I = 1, N
X(I) = G05DHF(DF,IFAIL)
10 CONTINUE
New: CALL G05SDF(N,DF,STATE,X,IFAIL)
The old routine
G05DHF returns a single variate at
a time, whereas the new routine
G05SDF returns a
vector of
N values in one go.
The
integer array
STATE in the call to
G05SDF contains information on the base generator being
used. This array must have been initialized prior to calling
G05SDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during
initialization.
Due to changes in the underlying code the sequence of values
produced by
G05SDF is likely to be different from those
produced by
G05DHF.
G05DJF
Withdrawn at Mark 22.
Replaced by
G05SNF.
Old: DO 10 I = 1, N
X(I) = G05DJF(DF,IFAIL)
10 CONTINUE
New: CALL G05SNF(N,DF,STATE,X,IFAIL)
The old routine
G05DJF returns a single variate at
a time, whereas the new routine
G05SNF returns a
vector of
N values in one go.
The
integer array
STATE in the call to
G05SNF contains information on the base generator being
used. This array must have been initialized prior to calling
G05SNF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during
initialization.
Due to changes in the underlying code the sequence of values
produced by
G05SNF is likely to be different from those
produced by
G05DJF.
G05DKF
Withdrawn at Mark 22.
Replaced by
G05SHF.
Old: DO 10 I = 1, N
X(I) = G05DKF(DF1,DF2,IFAIL)
10 CONTINUE
New: CALL G05SHF(N,DF1,DF2,STATE,X,IFAIL)
The old routine
G05DKF returns a single variate at
a time, whereas the new routine
G05SHF returns a
vector of
N values in one go.
The
integer array
STATE in the call to
G05SHF contains information on the base generator being
used. This array must have been initialized prior to calling
G05SHF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during
initialization.
Due to changes in the underlying code the sequence of values
produced by
G05SHF is likely to be different from those
produced by
G05DKF.
G05DPF
Withdrawn at Mark 22.
Replaced by
G05SSF.
Old: DO 10 I = 1, N
X(I) = G05DPF(A,B,IFAIL)
10 CONTINUE
New: CALL G05SSF(N,A,B,STATE,X,IFAIL)
The old routine
G05DPF returns a single variate at
a time, whereas the new routine
G05SSF returns a
vector of
N values in one go.
The
integer array
STATE in the call to
G05SSF contains information on the base generator being
used. This array must have been initialized prior to calling
G05SSF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during
initialization.
Due to changes in the underlying code the sequence of values
produced by
G05SSF is likely to be different from those
produced by
G05DPF.
G05DRF
Withdrawn at Mark 22.
Replaced by
G05TKF.
Old: DO 10 I = 1, N
X(I) = G05DRF(LAMDA,IFAIL)
10 CONTINUE
New: MODE = 3
CALL G05TJF(MODE,N,LAMBDA,R,LR,STATE,X,IFAIL)
The old routine
G05DRF returns a single variate at
a time, whereas the new routine
G05TJF returns a
vector of
N values in one go. For
efficiency, the new routine can make use of a reference vector,
R. If, as in this case, the integer parameter
MODE is set to 3, the real reference
vector
R is not
referenced, and its
length,
LR, need only be at least
one.
The integer array
STATE in
the call to
G05TJF contains information on the base
generator being used. This array must have been initialized prior to calling
G05TJF with a call to either
G05KFF or
G05KGF.
The required length of the
array
STATE will depend on the base
generator chosen during initialization.
Due to changes in the underlying code
the sequence of values produced by
G05TJF is likely to
be different from those produced by
G05DRF.
G05DYF
Withdrawn at Mark 22.
Replaced by
G05TLF.
Old: DO 10 I = 1, N
X(I) = G05DYF(AA,BB)
10 CONTINUE
New: IFAIL = 0
A = MIN(AA,BB)
B = MAX(AA,BB)
CALL G05TLF(N,A,B,STATE,X,IFAIL)
The old routine
G05DYF returns a single variate at a time, whereas the new routine
G05TLF returns a vector of
N values in one go. In
G05TLF the minimum value must be held in the parameter
A and the maximum in parameter
B, therefore
${\mathbf{A}}\le {\mathbf{B}}$. This was not the case for the equivalent parameters in
G05DYF.
The integer array
STATE in the call to
G05TLF contains information on the base generator being used. This array must have been initialized prior to calling
G05TLF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05TLF is likely to be different from those produced by
G05DYF.
G05DZF
Withdrawn at Mark 22.
Replaced by
G05TBF.
Old: DO 20 I = 1, N
X(I) = G05DZF(PP)
20 CONTINUE
New: P = MAX(0.0D0,MIN(PP,1.0D0))
IFAIL = 0
CALL G05TBF(N,P,STATE,X,IFAIL)
The old routine
G05DZF returns a single variate at
a time, whereas the new routine
G05TBF returns a
vector of
N values in one go. The
real parameter
P in
G05TBF must not be less than zero or greater than one, this was not the
case for the equivalent parameter in
G05DZF.
The integer array
STATE in the call
to
G05TBF contains information on the base generator
being used. This array must have been initialized prior to calling
G05TBF with a call to either
G05KFF
or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen
during initialization.
Due to changes in the underlying code the sequence of
values produced by
G05TBF is likely to be different from
those produced by
G05DZF.
G05EAF
Withdrawn at Mark 22.
Replaced by
G05RZF.
Old: CALL G05EAF(XMU,M,C,LDC,EPS,R1,LR1,IFAIL)
New: MODE = 0
CALL G05RZF(MODE,N,M,XMU,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The old routine
G05EAF sets up a reference vector for use by
G05EZF. The functionality of both these routines has been combined into the single new routine
G05RZF. Setting
${\mathbf{MODE}}=0$
in the call to
G05RZF only sets up the real reference vector
R and hence mimics the functionality of
G05EAF.
The length of the real reference vector,
R, in
G05RZF must be at least
${\mathbf{M}}\times \left({\mathbf{M}}+1\right)+1$. In contrast to the equivalent parameter in
G05EAF, this array must be allocated in the calling program.
G05EBF
Withdrawn at Mark 22.
Replaced by
G05TLF.
There is no direct replacement for routine
G05EBF.
G05EBF sets up a reference vector for use by
G05EYF, this reference vector is no longer required. The replacement routine for
G05EYF is
G05TLF.
G05ECF
Withdrawn at Mark 22.
Replaced by
G05TJF.
Old: CALL G05ECF(LAMBDA,R1,LR1,IFAIL)
DO 10 I = 1, N
X(I) = G05EYF(R1,LR1)
10 CONTINUE
New: MODE = 2
CALL G05TJF(MODE,N,LAMBDA,R,LR,STATE,X,IFAIL)
The old routine
G05ECF sets up a reference vector for use by
G05EYF. The replacement routine
G05TJF is now used to both set up a reference vector and generate the required variates. Setting
${\mathbf{MODE}}=0$ in the call to
G05TJF sets up the real reference vector
R and hence mimics the functionality of
G05ECF. Setting
${\mathbf{MODE}}=1$ generates a series of variates from a reference vector mimicking the functionality of
G05EYF for this particular distribution. Setting
${\mathbf{MODE}}=2$ initializes the reference vector and generates the variates in one go.
The routine
G05EYF returns a single variate at a time, whereas the new routine
G05TJF returns a vector of
N values in one go.
The length of the real reference vector,
R, in
G05TJF, must be allocated in the calling program in contrast to the equivalent parameter in
G05ECF, see the documentation for more details.
The integer array
STATE in the call to
G05TJF contains information on the base generator being used. This array must have been initialized prior to calling
G05TJF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05TJF is likely to be different from those produced by a combination of
G05ECF and
G05EYF.
G05EDF
Withdrawn at Mark 22.
Replaced by
G05TAF.
Old: CALL G05EDF(M,P,R1,LR1,IFAIL)
DO 10 I = 1, N
X(I) = G05EYF(R1,LR1)
10 CONTINUE
New: MODE = 2
CALL G05TAF(MODE,N,M,P,R,LR,STATE,X,IFAIL)
The old routine
G05EDF sets up a reference vector for use by
G05EYF. The replacement routine
G05TAF is now used to both set up a reference vector and generate the required variates. Setting
${\mathbf{MODE}}=0$ in the call to
G05TAF sets up the real reference vector
R and hence mimics the functionality of
G05EDF. Setting
${\mathbf{MODE}}=1$ generates a series of variates from a reference vector mimicking the functionality of
G05EYF for this particular distribution. Setting
${\mathbf{MODE}}=2$ initializes the reference vector and generates the variates in one go.
The routine
G05EYF returns a single variate at a time, whereas the new routine
G05TAF returns a vector of
N values in one go.
The length of the real reference vector,
R, in
G05TAF, needs to be a different length from the equivalent parameter in
G05EDF, see the documentation for more details.
The integer array
STATE in the call to
G05TAF contains information on the base generator being used. This array must have been initialized prior to calling
G05TAF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05TAF is likely to be different from those produced by a combination of
G05EDF and
G05EYF.
G05EEF
Withdrawn at Mark 22.
Replaced by
G05THF.
Old: CALL G05EEF(M,P,R1,LR1,IFAIL)
DO 10 I = 1, N
X(I) = G05EYF(R1,LR1)
10 CONTINUE
New: MODE = 2
CALL G05THF(MODE,N,M,P,R,LR,STATE,X,IFAIL)
The old routine
G05EEF sets up a reference vector for use by
G05EYF. The replacement routine
G05THF is now used to both set up a reference vector and generate the required variates. Setting
${\mathbf{MODE}}=0$ in the call to
G05THF sets up the real reference vector
R and hence mimics the functionality of
G05EEF. Setting
${\mathbf{MODE}}=1$ generates a series of variates from a reference vector mimicking the functionality of
G05EYF for this particular distribution. Setting
${\mathbf{MODE}}=2$ initializes the reference vector and generates the variates in one go.
The routine
G05EYF returns a single variate at a time, whereas the new routine
G05THF returns a vector of
N values in one go.
The length of the real reference vector,
R, in
G05THF, needs to be a different length from the equivalent parameter in
G05EEF, see the documentation for
G05THF for more details.
The integer array
STATE in the call to
G05THF contains information on the base generator being used. This array must have been initialized prior to calling
G05THF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05THF is likely to be different from those produced by a combination of
G05EEF and
G05EYF.
G05EFF
Withdrawn at Mark 22.
Replaced by
G05TEF.
Old: CALL G05EFF(NS,M,NP,R1,LR1,IFAIL)
DO 10 I = 1, N
X(I) = G05EYF(R1,LR1)
10 CONTINUE
New: MODE = 2
CALL G05TEF(MODE,N,NS,NP,M,R,LR,STATE,X,IFAIL)
The old routine
G05EFF sets up a reference vector for use by
G05EYF. The replacement routine
G05TEF is now used to both set up a reference vector and generate the required variates. Setting
${\mathbf{MODE}}=0$ in the call to
G05TEF sets up the real reference vector
R and hence mimics the functionality of
G05EFF. Setting
${\mathbf{MODE}}=1$ generates a series of variates from a reference vector mimicking the functionality of
G05EYF for this particular distribution. Setting
${\mathbf{MODE}}=2$ initializes the reference vector and generates the variates in one go.
The routine
G05EYF returns a single variate at a time, whereas the new routine
G05TEF returns a vector of
N values in one go.
The length of the real reference vector,
R, in
G05TEF, needs to be a different length from the equivalent parameter in
G05EFF, see the documentation for more details.
The integer array
STATE in the call
to
G05TEF contains information on the base generator
being used. This array must have been initialized prior to calling
G05TEF with a call to either
G05KFF
or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen
during initialization.
Due to changes in the underlying code the sequence of
values produced by
G05TEF is likely to be different from
those produced by a combination of
G05EFF and
G05EYF.
G05EGF
Withdrawn at Mark 22.
Replaced by
G05PHF.
Old: CALL G05EGF(E,A,NA,B,NB,R,NR,VAR,IFAIL)
New: AVAR = B(1)**2
IQ = NB  1
IF (AVAR.GT.0.0D0) THEN
DO 10 I = 1, IQ
THETA(I) = B(I+1)/B(1)
10 CONTINUE
ELSE
DO 20 I = 1, IQ
THETA(I) = 0.0D0
20 CONTINUE
END IF
MODE = 0
CALL G05PHF(MODE,N,E,NA,A,IQ,THETA,AVAR,R,LR,STATE,VAR,X,IFAIL)
The real vector
THETA must be of length at least
${\mathbf{IQ}}=\mathrm{NB}1$.
The old routine
G05EGF sets up a reference vector for use by
G05EWF. The replacement routine
G05PHF is now used to both set up a reference vector and generate the required variates. Setting
${\mathbf{MODE}}=0$ in the call to
G05PHF sets up the real reference vector
R and hence mimics the functionality of
G05EGF. When
${\mathbf{MODE}}=0$, the integer array
STATE in the call to
G05PHF need not be set.
G05EHF
Withdrawn at Mark 22.
Replaced by
G05NCF.
Old: CALL G05EHF(INDEX,N,IFAIL)
New: CALL G05NCF(INDEX,N,STATE,IFAIL)
The integer array
STATE in the call to
G05NCF contains information on the base generator being used. This array must have been initialized prior to calling
G05NCF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05NCF is likely to be different from those produced by
G05EHF.
G05EJF
Withdrawn at Mark 22.
Replaced by
G05NDF.
Old: CALL G05EJF(IA,N,IZ,M,IFAIL)
New: CALL G05NDF(IA,N,IZ,M,STATE,IFAIL)
The integer array
STATE in the call to
G05NDF contains information on the base generator being used. This array must have been initialized prior to calling
G05NDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05NDF is likely to be different from those produced by
G05EJF.
G05EWF
Withdrawn at Mark 22.
Replaced by
G05PHF.
Old: CALL G05EGF(E,A,NA,B,NB,R,NR,VAR,IFAIL)
DO 10 I = 1, N
X(I) = G05EWF(R,NR,IFAIL)
10 CONTINUE
New: AVAR = B(1)**2
IQ = NB  1
IF (AVAR.GT.0.0D0) THEN
DO 10 I = 1, IQ
THETA(I) = B(I+1)/B(1)
10 CONTINUE
ELSE
DO 20 I = 1, IQ
THETA(I) = 0.0D0
20 CONTINUE
END IF
MODE = 2
CALL G05PHF(MODE,N,E,NA,A,NB1,THETA,AVAR,VAR,R,LR,STATE,X,IFAIL)
The real vector
THETA must be of length at least
${\mathbf{IQ}}=\mathrm{NB}1$.
The old routine
G05EGF sets up a reference vector for use by
G05EWF. The replacement routine
G05PHF is now used to both set up a reference vector and generate the required variates. Setting the integer parameter
MODE to 0 in the call to
G05PHF sets up the real reference vector
R and hence mimics the functionality of
G05EGF. Setting
MODE to 1 generates a series of variates from a reference vector mimicking the functionality of
G05EWF. Setting
MODE to 2 initializes the reference vector and generates the variates in one go.
The integer array
STATE in the call to
G05PHF contains information on the base generator being used. This array must have been initialized prior to calling
G05PHF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PHF is likely to be different from those produced by
G05EGF.
G05EXF
Withdrawn at Mark 22.
Replaced by
G05TDF.
Old: CALL G05EXF(P,NP,IP1,ITYPE,R1,LR1,IFAIL)
DO 10 I = 1, N
X(I) = G05EYF(R1,LR1)
10 CONTINUE
New: MODE = 2
CALL G05TDF(MODE,N,P,NP,IP1,ITYPE,R,LR,STATE,X,IFAIL)
The old routine
G05EXF sets up a reference vector for use by
G05EYF. The replacement routine
G05TDF is now used to both set up a reference vector and generate the required variates. Setting
${\mathbf{MODE}}=0$ in the call to
G05TDF sets up the real reference vector
R and hence mimics the functionality of
G05EXF. Setting
${\mathbf{MODE}}=1$ generates a series of variates from a reference vector mimicking the functionality of
G05EYF for this particular distribution. Setting
${\mathbf{MODE}}=2$ initializes the reference vector and generates the variates in one go.
The routine
G05EYF returns a single variate at a time, whereas the new routine
G05TDF returns a vector of
N values in one go.
The length of the real reference vector,
R, in
G05TDF must be allocated in the calling program in contrast to the equivalent parameter in
G05EXF, see the documentation for more details.
The integer array
STATE in the call to
G05TDF contains information on the base generator being used. This array must have been initialized prior to calling
G05TDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05TDF is likely to be different from those produced by a combination of
G05EXF and
G05EYF.
G05EYF
Withdrawn at Mark 22.
Replaced by
G05TDF.
There is no direct replacement routine for
G05EYF.
G05EYF is designed to generate random draws from a distribution defined by a reference vector. These reference vectors are created by other routines in
Chapter G05, for example
G05EBF,
which have themselves been superseded. In order to replace a call to
G05EYF you must identify which NAG routine generated the reference vector being used and look up its replacement. For example, to replace a call to
G05EYF preceded by a call to
G05EBF,
as in:
CALL G05EBF(M,IB,R,NR,IFAIL)
X = G05EYF(R,NR)
you would need to look at the replacement routine for
G05EBF.
G05EZF
Withdrawn at Mark 22.
Replaced by
G05RZF.
Old: CALL G05EAF(XMU,N,C,LDC,EPS,R1,LR1,IFAIL)
DO 20 I = 1, N
CALL G05EZF(CX,M,R,NR,IFAIL)
DO 30 J = 1, M
X(I,J) = CX(J)
30 CONTINUE
20 CONTINUE
New: MODE = 2
CALL G05RZF(MODE,N,M,XMU,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The old routine
G05EAF sets up a reference vector for use by
G05EZF. The functionality of both these routines has been combined into the single new routine
G05RZF. Setting
${\mathbf{MODE}}=2$
in the call to
G05RZF sets up the real reference vector
R and generates the draws from the multivariate Normal distribution in one go.
The old routine
G05EZF returns a single (
Mdimensional vector) draw from the multivariate Normal distribution at a time, whereas the new routine
G05RZF returns an
N by
M matrix of
N draws in one go.
The integer array
STATE in the call to
G05RZF contains information on the base generator being used. This array must have been initialized prior to calling
G05RZF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05RZF is likely to be different from those produced by
G05EZF.
G05FAF
Withdrawn at Mark 22.
Replaced by
G05SQF.
Old: CALL G05FAF(AA,BB,N,X)
New: A = MIN(AA,BB)
B = MAX(AA,BB)
IFAIL = 0
CALL G05SQF(N,A,B,STATE,X,IFAIL)
In
G05SQF the minimum value must be held in the parameter A and the maximum in parameter
B, therefore
${\mathbf{A}}\le {\mathbf{B}}$. This was not the case for the equivalent parameters in
G05FAF.
The integer array
STATE in the call to
G05SQF contains information on the base generator being used. This array must have been initialized prior to calling
G05SQF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SQF is likely to be different from those produced by
G05FAF.
G05FBF
Withdrawn at Mark 22.
Replaced by
G05SFF.
Old: CALL G05FBF(AA,N,X)
New: A = ABS(AA)
IFAIL = 0
CALL G05SFF(N,A,STATE,X,IFAIL)
In
G05SFF parameter
A must be nonnegative, this was not the case for the equivalent parameter in
G05FBF.
The integer array
STATE in the call to
G05SFF contains information on the base generator being used. This array must have been initialized prior to calling
G05SFF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SFF is likely to be different from those produced by
G05FBF.
G05FDF
Withdrawn at Mark 22.
Replaced by
G05SKF.
Old: CALL G05FDF(XMU,SD,N,X)
New: VAR = SD**2
IFAIL = 0
CALL G05SKF(N,XMU,VAR,STATE,X,IFAIL)
G05SKF expects the variance of the Normal distribution (parameter
VAR), compared to
G05FDF which expected the standard deviation.
The integer array
STATE in the call to
G05SKF contains information on the base generator being used. This array must have been initialized prior to calling
G05SKF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SKF is likely to be different from those produced by
G05FDF.
G05FEF
Withdrawn at Mark 22.
Replaced by
G05SBF.
Old: CALL G05FEF(A,B,N,X,IFAIL)
New: CALL G05SBF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SBF contains information on the base generator being used. This array must have been initialized prior to calling
G05SBF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SBF is likely to be different from those produced by
G05FEF.
G05FFF
Withdrawn at Mark 22.
Replaced by
G05SJF.
Old: CALL G05FFF(A,B,N,X,IFAIL)
New: CALL G05SJF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SJF contains information on the base generator being used. This array must have been initialized prior to calling
G05SJF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SJF is likely to be different from those produced by
G05FFF.
G05FSF
Withdrawn at Mark 22.
Replaced by
G05SRF.
Old: CALL G05FSF(VK,N,X,IFAIL)
New: CALL G05SRF(N,VK,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SRF contains information on the base generator being used. This array must have been initialized prior to calling
G05SRF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05SRF is likely to be different from those produced by
G05FSF.
G05GAF
Withdrawn at Mark 22.
Replaced by
G05PXF.
Old: CALL G05GAF(SIDE,INIT,M,N,A,LDA,WK,IFAIL)
New: CALL G05PXF(SIDE,INIT,M,N,STATE,A,LDA,IFAIL)
The integer array
STATE in the call to
G05PXF contains information on the base generator being used. This array must have been initialized prior to calling
G05PXF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PXF is likely to be different from those produced by
G05GAF.
G05GBF
Withdrawn at Mark 22.
Replaced by
G05PYF.
Old: CALL G05GBF(N,D,C,LDC,EPS,WK,IFAIL)
New: CALL G05PYF(N,D,EPS,STATE,C,LDC,IFAIL)
The integer array
STATE in the call to
G05PYF contains information on the base generator being used. This array must have been initialized prior to calling
G05PYF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PYF is likely to be different from those produced by
G05GBF.
G05HDF
Withdrawn at Mark 22.
Replaced by
G05PJF.
Old: CALL G05HDF(MODE,K,IP,IQ,MEAN,PAR,LPAR,QQ,LDQQ,N,W,REF,LREF, &
IWORK,LIWORK,IFAIL)
New: IF (MODE.EQ.'S') THEN
IMODE = 0
ELSE IF (MODE.EQ.'C') THEN
IMODE = 1
ELSE IF (MODE.EQ.'R') THEN
IMODE = 3
END IF
LL = 0
DO 30 L = 1, IP
DO 20 I = 1, K
DO 10 J = 1, K
LL = LL + 1
PHI(I,J,L) = PAR(LL)
10 CONTINUE
20 CONTINUE
30 CONTINUE
DO 60 L = 1, IQ1
DO 50 I = 1, K
DO 40 J = 1, K
LL = LL + 1
THETA(I,J,L) = PAR(LL)
40 CONTINUE
50 CONTINUE
60 CONTINUE
IF (MEAN.EQ.'M') THEN
DO 70 I = 1, K
LL = LL + 1
XMEAN(I) = PAR(LL)
70 CONTINUE
ELSE
DO 80 I = 1, K
XMEAN(I) = 0.0D0
80 CONTINUE
END IF
LDW = N
CALL G05PJF(IMODE,N,K,XMEAN,IP,PHI,IQ,THETA,QQ,LDQQ,REF,LREF, &
STATE,W,LDW,IWORK,LIWORK,IFAIL)
The integer parameter
IMODE should be set to 0, 1 or 3 in place of the parameter MODE having settings of 'S', 'C' or 'R' respectively. The real array
PHI should have length at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{IP}}\times \left({\mathbf{K}}\times {\mathbf{K}}\right)\right)$; if dimensioned as
${\mathbf{PHI}}\left({\mathbf{K}},{\mathbf{K}},{\mathbf{IP}}\right)$ (as in the above example) then
${\mathbf{PHI}}\left(i,j,l\right)$ will contain the element
$\mathrm{PAR}\left(\left(l1\right)\times k\times k+\left(i1\right)\times k+j\right)$. The real array
THETA should have length at least
$\mathrm{max}\phantom{\rule{0.125em}{0ex}}\left(1,{\mathbf{IQ}}\times \left({\mathbf{K}}\times {\mathbf{K}}\right)\right)$; if dimensioned as
${\mathbf{THETA}}\left({\mathbf{K}},{\mathbf{K}},{\mathbf{IQ}}\right)$ (as in the above example) then
${\mathbf{THETA}}\left(i,j,l\right)$ will contain the element
$\mathrm{PAR}\left(\mathrm{IP}\times k\times k+\left(l1\right)\times k\times k+\left(i1\right)\times k+j\right)$. The real array
XMEAN should have length at least
K; if
$\mathrm{MEAN}=\text{'M'}$ then
${\mathbf{XMEAN}}\left(i\right)$ will contain the element
$\mathrm{PAR}\left(\mathrm{IP}+\mathrm{IQ}\times k\times k+i\right)$, otherwise
XMEAN should contain an array of zero values.
The integer array
STATE in the call to
G05PJF contains information on the base generator being used. This array must have been initialized prior to calling
G05PJF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PJF is likely to be different from those produced by
G05HDF.
G05HKF
Withdrawn at Mark 24.
Replaced by
G05PDF.
Old: CALL G05HKF(DIST,NUM,IP,IQ,THETA,GAMMA,DF,HT,ET,FCALL,RVEC,IGEN, &
ISEED,RWSAV,IFAIL)
New: CALL G05PDF(DIST,NUM,IP,IQ,THETA,GAMMA,DF,HT,ET,FCALL,R,LR,STATE, &
IFAIL)
The integer array
STATE in the call to
G05PDF contains information on the base generator being used. This array must have been initialized prior to calling
G05PDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PDF is likely to be different from those produced by
G05HKF.
G05HLF
Withdrawn at Mark 24.
Replaced by
G05PEF.
Old: CALL G05HLF(DIST,NUM,IP,IQ,THETA,GAMMA,DF,HT,ET,FCALL,RVEC,IGEN, &
ISEED,RWSAV,IFAIL)
New: CALL G05PEF(DIST,NUM,IP,IQ,THETA,GAMMA,DF,HT,ET,FCALL,R,LR,STATE, &
IFAIL)
The integer array
STATE in the call to
G05PEF contains information on the base generator being used. This array must have been initialized prior to calling
G05PEF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PEF is likely to be different from those produced by
G05HLF.
G05HMF
Withdrawn at Mark 24.
Replaced by
G05PFF.
Old: CALL G05HMF(DIST,NUM,IP,IQ,THETA,GAMMA,DF,HT,ET,FCALL,RVEC,IGEN, &
ISEED,RWSAV,IFAIL)
New: CALL G05PFF(DIST,NUM,IP,IQ,THETA,GAMMA,DF,HT,ET,FCALL,R,LR,STATE, &
IFAIL)
The integer array
STATE in the call to
G05PFF contains information on the base generator being used. This array must have been initialized prior to calling
G05PFF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
Due to changes in the underlying code the sequence of values produced by
G05PFF is likely to be different from those produced by
G05HMF.
G05HNF
Withdrawn at Mark 24.
Replaced by
G05PGF.
Old: CALL G05HNF(DIST,NUM,IP,IQ,THETA,DF,HT,ET,FCALL,RVEC,IGEN,ISEED, &
RWSAV,IFAIL)
New: CALL G05PGF(DIST,NUM,IP,IQ,THETA,DF,HT,ET,FCALL,RVEC,STATE, &
IFAIL)
The integer array
STATE in the call to
G05PGF contains information on the base generator being used. This array must have been initialized prior to calling
G05PGF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05KAF
Withdrawn at Mark 24.
Replaced by
G05SAF.
Old: DO 20 I = 1, N
X(I) = G05KAF(IGEN,ISEED)
20 CONTINUE
New: CALL G05SAF(N,STATE,X,IFAIL)
The old routine
G05KAF returns a single variate at a time, whereas the new routine
G05SAF returns a vector of
N values in one go.
The integer array
STATE in the call to
G05SAF contains information on the base generator being used. This array must have been initialized prior to calling
G05SAF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05KBF
Withdrawn at Mark 24.
Replaced by
G05KFF.
Old: G05KBF(IGEN,ISEED)
New: IF (IGEN.EQ.0) THEN
CALL G05KFF(1,1,ISEED,LSEED,STATE,LSTATE,IFAIL)
ELSE
CALL G05KFF(2,IGEN,ISEED,LSEED,STATE,LSTATE,IFAIL)
END IF
G05KCF
Withdrawn at Mark 24.
Replaced by
G05KGF.
Old: CALL G05KCF(IGEN,ISEED)
New: IF (IGEN.EQ.0) THEN
CALL G05KGF(1,1,STATE,LSTATE,IFAIL)
ELSE
CALL G05KGF(2,IGEN,STATE,LSTATE,IFAIL)
END IF
G05KEF
Withdrawn at Mark 24.
Replaced by
G05TBF.
Old: DO 20 I = 1, N
X(I) = G05KEF(P,IGEN,ISEED,IFAIL)
20 CONTINUE
New: CALL G05TBF(N,P,STATE,X,IFAIL)
The old routine
G05KEF returns a single variate at a time, whereas the new routine
G05TBF returns a vector of
N values in one go.
The integer array
STATE in the call to
G05TBF contains information on the base generator being used. This array must have been initialized prior to calling
G05TBF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LAF
Withdrawn at Mark 24.
Replaced by
G05SKF.
Old: CALL G05LAF(XMU,VAR,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SKF(N,XMU,VAR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SKF contains information on the base generator being used. This array must have been initialized prior to calling
G05SKF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LBF
Withdrawn at Mark 24.
Replaced by
G05SNF.
Old: CALL G05LBF(DF,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SNF(N,DF,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SNF contains information on the base generator being used. This array must have been initialized prior to calling
G05SNF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LCF
Withdrawn at Mark 24.
Replaced by
G05SDF.
Old: CALL G05LCF(DF,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SDF(N,DF,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SDF contains information on the base generator being used. This array must have been initialized prior to calling
G05SDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LDF
Withdrawn at Mark 24.
Replaced by
G05SHF.
Old: CALL G05LDF(DF1,DF2,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SHF(N,DF1,DF2,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SHF contains information on the base generator being used. This array must have been initialized prior to calling
G05SHF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LEF
Withdrawn at Mark 24.
Replaced by
G05SBF.
Old: CALL G05LEF(A,B,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SBF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SBF contains information on the base generator being used. This array must have been initialized prior to calling
G05SBF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LFF
Withdrawn at Mark 24.
Replaced by
G05SJF.
Old: CALL G05LFF(A,B,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SJF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SJF contains information on the base generator being used. This array must have been initialized prior to calling
G05SJF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LGF
Withdrawn at Mark 24.
Replaced by
G05SQF.
Old: CALL G05LGF(A,B,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SQF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SQF contains information on the base generator being used. This array must have been initialized prior to calling
G05SQF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LHF
Withdrawn at Mark 24.
Replaced by
G05SPF.
Old: CALL G05LHF(XMIN,XMAX,XMED,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SPF(N,XMIN,XMED,XMAX,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SPF contains information on the base generator being used. This array must have been initialized prior to calling
G05SPF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LJF
Withdrawn at Mark 24.
Replaced by
G05SFF.
Old: CALL G05LJF(A,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SFF(N,A,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SFF contains information on the base generator being used. This array must have been initialized prior to calling
G05SFF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LKF
Withdrawn at Mark 24.
Replaced by
G05SMF.
Old: CALL G05LKF(XMU,VAR,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SMF(N,XMU,VAR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SMF contains information on the base generator being used. This array must have been initialized prior to calling
G05SMF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LLF
Withdrawn at Mark 24.
Replaced by
G05SJF.
Old: CALL G05LLF(XMED,SEMIQR,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SCF(N,XMED,SEMIQR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SCF contains information on the base generator being used. This array must have been initialized prior to calling
G05SCF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LMF
Withdrawn at Mark 24.
Replaced by
G05SSF.
Old: CALL G05LMF(A,B,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SSF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SSF contains information on the base generator being used. This array must have been initialized prior to calling
G05SSF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LNF
Withdrawn at Mark 24.
Replaced by
G05SLF.
Old: CALL G05LNF(A,B,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SLF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SLF contains information on the base generator being used. This array must have been initialized prior to calling
G05SLF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LPF
Withdrawn at Mark 24.
Replaced by
G05SRF.
Old: CALL G05LPF(VK,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SRF(N,VK,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SRF contains information on the base generator being used. This array must have been initialized prior to calling
G05SRF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LQF
Withdrawn at Mark 24.
Replaced by
G05SGF.
Old: CALL G05LQF(NMIX,A,WGT,N,X,IGEN,ISEED,IFAIL)
New: CALL G05SGF(N,NMIX,A,WGT,STATE,X,IFAIL)
The integer array
STATE in the call to
G05SGF contains information on the base generator being used. This array must have been initialized prior to calling
G05SGF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LXF
Withdrawn at Mark 24.
Replaced by
G05RYF.
Old: CALL G05LXF(MODE,DF,M,XMU,C,LDC,N,X,LDX,IGEN,ISEED,R,LR,IFAIL)
New: IF (MODE == 0) THEN
NMODE = 1
ELSE IF (MODE == 1) THEN
NMODE = 0
ELSE
NMODE = MODE
END IF
CALL G05RYF(NMODE,N,DF,M,XMU,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05RYF contains information on the base generator being used. This array must have been initialized prior to calling
G05RYF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LYF
Withdrawn at Mark 24.
Replaced by
G05RZF.
Old: G05LYF(MODE,M,XMU,C,LDC,N,X,LDX,IGEN,ISEED,R,LR,IFAIL)
New: IF (MODE == 0) THEN
NMODE = 1
ELSE IF (MODE == 1) THEN
NMODE = 0
ELSE
NMODE = MODE
END IF
CALL G05RZF(NMODE,N,M,XMU,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05RZF contains information on the base generator being used. This array must have been initialized prior to calling
G05RZF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05LZF
Withdrawn at Mark 24.
Replaced by
G05RZF.
Old: CALL G05LZF(MODE,M,XMU,C,LDC,X,IGEN,ISEED,R,LR,IFAIL)
New: IF (MODE == 0) THEN
NMODE = 1
ELSE IF (MODE == 1) THEN
NMODE = 0
ELSE
NMODE = MODE
END IF
CALL G05RZF(NMODE,N,M,XMU,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05RZF contains information on the base generator being used. This array must have been initialized prior to calling
G05RZF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MAF
Withdrawn at Mark 24.
Replaced by
G05TLF.
Old: CALL G05MAF(A,B,N,X,IGEN,ISEED,IFAIL)
New: CALL G05TLF(N,A,B,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TLF contains information on the base generator being used. This array must have been initialized prior to calling
G05TLF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MBF
Withdrawn at Mark 24.
Replaced by
G05TCF.
Old: CALL G05MBF(MODE,P,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TCF(MODE,N,P,R,LR,STATE,X,IFAIL)
DO 20 I = 1, N
X(I) = X(I) + 1
20 CONTINUE
G05MBF returned the number of trials required to get the first success, whereas G05TCF returns the number of failures before the first success, therefore the value returned by
G05TCF is one less than the equivalent value returned from G05MBF.
The integer array
STATE in the call to
G05TCF contains information on the base generator being used. This array must have been initialized prior to calling
G05TCF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MCF
Withdrawn at Mark 24.
Replaced by
G05THF.
Old: CALL G05MCF(MODE,M,P,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05THF(MODE,N,M,P,R,LR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05THF contains information on the base generator being used. This array must have been initialized prior to calling
G05THF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MDF
Withdrawn at Mark 24.
Replaced by
G05TFF.
Old: CALL G05MDF(MODE,A,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TFF(MODE,N,A,R,LR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TFF contains information on the base generator being used. This array must have been initialized prior to calling
G05TFF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MEF
Withdrawn at Mark 24.
Replaced by
G05TKF.
Old: CALL G05MEF(M,VLAMDA,X,IGEN,ISEED,IFAIL)
New: CALL G05TKF(M,VLAMDA,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TKF contains information on the base generator being used. This array must have been initialized prior to calling
G05TKF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MJF
Withdrawn at Mark 24.
Replaced by
G05TAF.
Old: CALL G05MJF(MODE,M,P,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TAF(MODE,N,M,P,R,LR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TAF contains information on the base generator being used. This array must have been initialized prior to calling
G05TAF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MKF
Withdrawn at Mark 24.
Replaced by
G05TJF.
Old: CALL G05MKF(MODE,LAMBDA,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TJF(MODE,N,LAMBDA,R,LR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TJF contains information on the base generator being used. This array must have been initialized prior to calling
G05TJF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MLF
Withdrawn at Mark 24.
Replaced by
G05TEF.
Old: CALL G05MLF(MODE,NS,NP,M,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TEF(MODE,N,NS,NP,M,R,LR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TEF contains information on the base generator being used. This array must have been initialized prior to calling
G05TEF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MRF
Withdrawn at Mark 24.
Replaced by
G05TGF.
Old: CALL G05MRF(MODE,M,K,P,N,X,LDX,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TGF(MODE,N,M,K,P,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05TGF contains information on the base generator being used. This array must have been initialized prior to calling
G05TGF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05MZF
Withdrawn at Mark 24.
Replaced by
G05TDF.
Old: CALL G05MZF(MODE,P,NP,IP1,ITYPE,N,X,IGEN,ISEED,R,NR,IFAIL)
New: CALL G05TDF(MODE,N,P,NP,IP1,ITYPE,R,LR,STATE,X,IFAIL)
The integer array
STATE in the call to
G05TDF contains information on the base generator being used. This array must have been initialized prior to calling
G05TDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05NAF
Withdrawn at Mark 24.
Replaced by
G05NCF.
Old: CALL G05NAF(INDEX,N,IGEN,ISEED,IFAIL)
New: CALL G05NCF(INDEX,N,STATE,IFAIL)
The integer array
STATE in the call to
G05NCF contains information on the base generator being used. This array must have been initialized prior to calling
G05NCF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05NBF
Withdrawn at Mark 24.
Replaced by
G05NDF.
Old: CALL G05NBF(IPOP,N,ISAMPL,M,IGEN,ISEED,IFAIL)
New: CALL G05NDF(IPOP,N,ISAMPL,M,STATE,IFAIL)
The integer array
STATE in the call to
G05NDF contains information on the base generator being used. This array must have been initialized prior to calling
G05NDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05PAF
Withdrawn at Mark 24.
Replaced by
G05PHF.
Old: CALL G05PAF(MODE,XMEAN,IP,PHI,IQ,THETA,AVAR,VAR,N,X,IGEN,ISEED,R, &
NR,IFAIL)
New: CALL G05PHF(MODE,N,XMEAN,IP,PHI,IQ,THETA,AVAR,R,LR,STATE,VAR,X, &
IFAIL)
The integer array
STATE in the call to
G05PHF contains information on the base generator being used. This array must have been initialized prior to calling
G05PHF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05PCF
Withdrawn at Mark 24.
Replaced by
G05PJF.
Old: CALL G05PCF(MODE,K,XMEAN,IP,PHI,IQ,THETA,VAR,LDV,N,X,IGEN,ISEED,R, &
NR,IWORK,LIWORK,IFAIL)
New: CALL G05PJF(MODE,N,K,XMEAN,IP,PHI,IQ,THETA,VAR,LDV,R,LR,STATE,X,LDX, &
IFAIL)
The integer array
STATE in the call to
G05PJF contains information on the base generator being used. This array must have been initialized prior to calling
G05PJF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05QAF
Withdrawn at Mark 24.
Replaced by
G05PXF.
Old: CALL G05QAF(SIDE,INIT,M,N,A,LDA,IGEN,ISEED,WK,IFAIL)
New: CALL G05PXF(SIDE,INIT,M,N,STATE,A,LDA,IFAIL)
The integer array
STATE in the call to
G05PXF contains information on the base generator being used. This array must have been initialized prior to calling
G05PXF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05QBF
Withdrawn at Mark 24.
Replaced by
G05PYF.
Old: CALL G05QBF(N,D,C,LDC,EPS,IGEN,ISEED,WK,IFAIL)
New: CALL G05PYF(N,D,EPS,STATE,C,LDC,IFAIL)
The integer array
STATE in the call to
G05PYF contains information on the base generator being used. This array must have been initialized prior to calling
G05PYF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05QDF
Withdrawn at Mark 24.
Replaced by
G05PZF.
Old: CALL G05QDF(MODE,NROW,NCOL,TOTR,TOTC,X,LDX,IGEN,ISEED,R,NR,IW,LIW, &
IFAIL)
New: CALL G05PZF(MODE,NROW,NCOL,TOTR,TOTC,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05PZF contains information on the base generator being used. This array must have been initialized prior to calling
G05PZF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05RAF
Withdrawn at Mark 24.
Replaced by
G05RDF.
Old: CALL G05RAF(MODE,M,C,LDC,N,X,LDX,IGEN,ISEED,R,LR,IFAIL)
New: IF (MODE == 0) THEN
NMODE = 1
ELSE IF (MODE == 1) THEN
NMODE = 0
ELSE
NMODE = MODE
END IF
CALL CALL G05RDF(NMODE,N,M,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05RDF contains information on the base generator being used. This array must have been initialized prior to calling
G05RDF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05RBF
Withdrawn at Mark 24.
Replaced by
G05RCF.
Old: CALL G05RBF(MODE,DF,M,C,LDC,N,X,LDX,IGEN,ISEED,R,LR,IFAIL)
New: IF (MODE == 0) THEN
NMODE = 1
ELSE IF (MODE == 1) THEN
NMODE = 0
ELSE
NMODE = MODE
END IF
CALL CALL G05RCF(NMODE,N,DF,M,C,LDC,R,LR,STATE,X,LDX,IFAIL)
The integer array
STATE in the call to
G05RCF contains information on the base generator being used. This array must have been initialized prior to calling
G05RCF with a call to either
G05KFF or
G05KGF.
The required length of the array
STATE will depend on the base generator chosen during initialization.
G05YAF
Withdrawn at Mark 23.
Replaced by
G05YLF and
G05YMF.

Faure quasirandom numbers
Old: CALL G05YAF(.TRUE.,'F',ISKIP,IDIM,QUAS,IREF,IFAIL)
New: CALL G05YLF(4,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YAF(.FALSE.,'F',ISKIP,IDIM,QUAS,IREF,IFAIL)
New: CALL G05YMF(1,2,QUAS,LDQUAS,IREF,IFAIL) 

Sobol quasirandom numbers
Old: CALL G05YAF(.TRUE.,'S',ISKIP,IDIM,QUAS,IREF,IFAIL)
New: CALL G05YLF(2,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YAF(.FALSE.,'S',ISKIP,IDIM,QUAS,IREF,IFAIL)
New: CALL G05YMF(1,2,QUAS,LDQUAS,IREF,IFAIL) 

Neiderreiter quasirandom numbers
Old: CALL G05YAF(.TRUE.,'N',ISKIP,IDIM,QUAS,IREF,IFAIL)
New: CALL G05YLF(3,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YAF(.FALSE.,'N',ISKIP,IDIM,QUAS,IREF,IFAIL)
New: CALL G05YMF(1,2,QUAS,LDQUAS,IREF,IFAIL) 
G05YBF
Withdrawn at Mark 23.
Replaced by
G05YLF and either
G05YJF or
G05YKF.
This routine has been replaced by a suite of routines consisting of the relevant initialization routine followed by one of two possible generator routines.

Faure quasirandom numbers with Gaussian probability:
Old: CALL G05YBF(.TRUE.,'F',.FALSE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YLF(4,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YBF(.FALSE.,'F',.FALSE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YJF(MEAN,STD,N,QUASI,IREF,IFAIL) 

Sobol quasirandom numbers with Gaussian probability:
Old: CALL G05YBF(.TRUE.,'S',.FALSE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YLF(2,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YBF(.FALSE.,'S',.FALSE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YJF(MEAN,STD,N,QUASI,IREF,IFAIL) 

Neiderreiter quasirandom numbers with Gaussian probability:
Old: CALL G05YBF(.TRUE.,'N',.FALSE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YLF(3,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YBF(.FALSE.,'N',.FALSE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YJF(MEAN,STD,N,QUASI,IREF,IFAIL) 

Faure quasirandom numbers with log Normal probability:
Old: CALL G05YBF(.TRUE.,'F',.TRUE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YLF(4,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YBF(.FALSE.,'F',.TRUE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YKF(MEAN,STD,N,QUASI,IREF,IFAIL) 

Sobol quasirandom numbers with log Normal probability:
Old: CALL G05YBF(.TRUE.,'S',.TRUE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YLF(2,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YBF(.FALSE.,'S',.TRUE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YKF(MEAN,STD,N,QUASI,IREF,IFAIL) 

Neiderreiter quasirandom numbers with log Normal probability:
Old: CALL G05YBF(.TRUE.,'N',.TRUE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YLF(3,IDIM,IREF,LIREF,ISKIP,IFAIL)
Old: CALL G05YBF(.FALSE.,'N',.TRUE.,MEAN,STD,ISKIP,IDIM,QUASI,IREF,IFAIL)
New: CALL G05YKF(MEAN,STD,N,QUASI,IREF,IFAIL) 
G05YCF
Withdrawn at Mark 24.
Replaced by
G05YLF.
Old: CALL G05YCF(IDIM,IREF,IFAIL)
New: GENID = 4
CALL G05YLF(GENID,IDIM,IREF,LIREF,ISKIP,IFAIL)
G05YDF
Withdrawn at Mark 24.
Replaced by
G05YMF.
Old: CALL G05YDF(N,QUASI,IREF,IFAIL)
New: CALL G05YMF(N,QUAS,LDQUAS,IREF,IFAIL)
G05YEF
Withdrawn at Mark 24.
Replaced by
G05YLF.
Old: CALL G05YEF(IDIM, IREF, ISKIP, IFAIL)
New: GENID = 2
CALL G05YLF(GENID,IDIM,IREF,LIREF,ISKIP,IFAIL)
G05YFF
Withdrawn at Mark 24.
Replaced by
G05YMF.
Old: CALL G05YFF(N,QUASI,IREF,IFAIL)
New: CALL G05YMF(N,QUAS,LDQUAS,IREF,IFAIL)
G05YGF
Withdrawn at Mark 24.
Replaced by
G05YLF.
Old: CALL G05YGF(IDIM,IREF,ISKIP,IFAIL)
New: GENID = 3
CALL G05YLF(GENID,IDIM,IREF,LIREF,ISKIP,IFAIL)
G05YHF
Withdrawn at Mark 24.
Replaced by
G05YMF.
Old: CALL G05YHF(N,QUASI,IREF,IFAIL)
New: CALL G05YMF(N,RCORD,QUAS,LDQUAS,IREF,IFAIL)
G05ZAF
Withdrawn at Mark 22.
There is no replacement for this routine.
G05ZAF was used to select the underlying generator for the old style random number generation routines. These routines are no longer available and hence no direct replacement routine for
G05ZAF is required. See
G05KFF and
G05KGF for details on how to select the underlying generator for the newer style routines.
G10 – Smoothing in Statistics
G10BAF
Scheduled for withdrawal at Mark 27.
Replaced by
G10BBF.
Old: CALL G10BAF(N,X,WINDOW,SLO,SHI,NS,SMOOTH,T,USEFFT,FFT,IFAIL)
New: ALLOCATE(RCOMM,NS+20)
CALL G10BBF(N,X,1,WINDOW,SLO,SHI,NS,SMOOTH,T,USEFFT,RCOMM,IFAIL)
! the next step is only required if the information in FFT
! was being used outside another call to G10BAF
FFT(1:NS) = RCOMM(21:NS+20)
G13 – Time Series Analysis
G13DCF
Withdrawn at Mark 24.
Replaced by
G13DDF.
Old: CALL G13DCF(K,N,IP,IQ,MEAN,PAR,NPAR,QQ,KMAX,W,PARHLD,EXACT,IPRINT, &
CGETOL,MAXCAL,ISHOW,NITER,RLOGL,V,G,CM,LDCM,WORK,LWORK, &
IW,LIW,IFAIL)
New: CALL G13DDF(K,N,IP,IQ,MEAN,PAR,NPAR,QQ,KMAX,W,PARHLD,EXACT,IPRINT, &
CGETOL,MAXCAL,ISHOW,NITER,RLOGL,V,G,CM,LDCM,IFAIL)
The workspace arguments WORK, LWORK, IW and LIW are no longer required in the call to
G13DDF.
P01 – Error Trapping
P01ABF
Withdrawn at Mark 24.
There is no replacement for this routine.
X02 – Machine Constants
X02DAF
Withdrawn at Mark 24.
There is no replacement for this routine.
X02DJF
Withdrawn at Mark 24.
There is no replacement for this routine.