| s22aa {NAGFWrappers} | R Documentation |
s22aa returns a sequence of values for either the unnormalized or normalized Legendre functions of the first kind P_n^m(x) or overlineP_n^m(x) for real x of a given order m and degree n = 0 , 1 , . . . , N.
s22aa(mode, x, m, nl)
mode |
integer Indicates whether the sequence of function values is to be returned unnormalized or normalized. mode = 1: The sequence of function values is returned unnormalized. mode = 2: The sequence of function values is returned normalized. |
x |
double The argument x of the function. |
m |
integer The order m of the function. |
nl |
integer The degree N of the last function required in the sequence. |
R interface to the NAG Fortran routine S22AAF.
P |
double array The required sequence of function values as follows: if mode = 1, p[n] contains P_n^m(x) for n=0 . . . N; if mode = 2, p[n] contains overlineP_n^m(x) for n=0 . . . N. |
IFAIL |
integer ifail =0unless the function detects an error or a warning has been flagged (see the Errors section in Fortran library documentation). |
NAG
http://www.nag.co.uk/numeric/FL/nagdoc_fl23/pdf/S/s22aaf.pdf
ifail<-0 mode<-1 x<-0.5 m<-2 nl<-3 s22aa(mode,x,m,nl)