vdsinqi (3p)

Name

vdsinqi - initialize the array WSAVE, which is used in both VSINQF and VSINQB.

Synopsis

SUBROUTINE VDSINQI(N, WSAVE)

INTEGER N
DOUBLE PRECISION WSAVE(*)

SUBROUTINE VDSINQI_64(N, WSAVE)

INTEGER*8 N
DOUBLE PRECISION WSAVE(*)




F95 INTERFACE
SUBROUTINE VSINQI(N, WSAVE)

INTEGER :: N
REAL(8), DIMENSION(:) :: WSAVE

SUBROUTINE VSINQI_64(N, WSAVE)

INTEGER(8) :: N
REAL(8), DIMENSION(:) :: WSAVE




C INTERFACE
#include <sunperf.h>

void vdsinqi(int n, double *wsave);

void vdsinqi_64(long n, double *wsave);

Description

Oracle Solaris Studio Performance Library                          vdsinqi(3P)



NAME
       vdsinqi  - initialize the array WSAVE, which is used in both VSINQF and
       VSINQB.


SYNOPSIS
       SUBROUTINE VDSINQI(N, WSAVE)

       INTEGER N
       DOUBLE PRECISION WSAVE(*)

       SUBROUTINE VDSINQI_64(N, WSAVE)

       INTEGER*8 N
       DOUBLE PRECISION WSAVE(*)




   F95 INTERFACE
       SUBROUTINE VSINQI(N, WSAVE)

       INTEGER :: N
       REAL(8), DIMENSION(:) :: WSAVE

       SUBROUTINE VSINQI_64(N, WSAVE)

       INTEGER(8) :: N
       REAL(8), DIMENSION(:) :: WSAVE




   C INTERFACE
       #include <sunperf.h>

       void vdsinqi(int n, double *wsave);

       void vdsinqi_64(long n, double *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  trans-
                 forms can be obtained faster than the first.




                                  7 Nov 2015                       vdsinqi(3P)