Program f07fj_p0w_fe
! F07FJ_P0W_F Example Program Text
! Mark 28.7 Release. NAG Copyright 2022.
! .. Use Statements ..
Use iso_c_binding, Only: c_ptr
Use nagad_library, Only: f07fd_p0w_f, f07fj_p0w_f
Use nag_library, Only: nag_wp, x04caf
! .. Implicit None Statement ..
Implicit None
! .. Parameters ..
Integer, Parameter :: nin = 5, nout = 6
! .. Local Scalars ..
Type (c_ptr) :: ad_handle
Integer :: i, ifail, lda, n
Character (1) :: uplo
! .. Local Arrays ..
Real (Kind=nag_wp), Allocatable :: a(:,:)
! .. Executable Statements ..
Write (nout,*) 'F07FJ_P0W_F Example Program Results'
! Skip heading in data file
Read (nin,*)
Read (nin,*) n
lda = n
Allocate (a(lda,n))
! Read A from data file
a = 0.0_nag_wp
Read (nin,*) uplo
If (uplo=='U') Then
Read (nin,*)(a(i,i:n),i=1,n)
Else If (uplo=='L') Then
Read (nin,*)(a(i,1:i),i=1,n)
End If
! Factorize A
ifail = 0
Call f07fd_p0w_f(ad_handle,uplo,n,a,lda,ifail)
! Compute inverse of A
ifail = 0
Call f07fj_p0w_f(ad_handle,uplo,n,a,lda,ifail)
ifail = 0
Call x04caf('General',' ',n,n,a,n,'Inverse',ifail)
End Program f07fj_p0w_fe