vsinqi(3P) Sun Performance Library vsinqi(3P)NAMEvsinqi - initialize the array WSAVE, which is used in both VSINQF and
VSINQB.
SYNOPSIS
SUBROUTINE VSINQI(N, WSAVE)
INTEGER N
REAL WSAVE(*)
SUBROUTINE VSINQI_64(N, WSAVE)
INTEGER*8 N
REAL WSAVE(*)
F95 INTERFACE
SUBROUTINE VSINQI(N, WSAVE)
INTEGER :: N
REAL, DIMENSION(:) :: WSAVE
SUBROUTINE VSINQI_64(N, WSAVE)
INTEGER(8) :: N
REAL, DIMENSION(:) :: WSAVE
C INTERFACE
#include <sunperf.h>
void vsinqi(int n, float *wsave);
void vsinqi_64(long n, float *wsave);
ARGUMENTS
N (input) Length of the sequence to be transformed. The method is most
efficient when N is a product of small primes.
WSAVE (input/output)
On entry, an array with a dimension of at least (2 * N + 15).
The same work array can be used for both VSINQF and VSINQB as
long as N remains unchanged. Different WSAVE arrays are
required for different values of N. This initialization does
not have to be repeated between calls to VSINQF or VSINQB as
long as N and WSAVE remain unchanged, thus subsequent transā
forms can be obtained faster than the first.
6 Mar 2009 vsinqi(3P)