cosqi (3p)

Name

cosqi - initialize the array WSAVE, which is used in both COSQF and COSQB.

Synopsis

SUBROUTINE COSQI(N, WSAVE)

INTEGER N
REAL WSAVE(*)

SUBROUTINE COSQI_64(N, WSAVE)

INTEGER*8 N
REAL WSAVE(*)




F95 INTERFACE
SUBROUTINE COSQI(N, WSAVE)

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

SUBROUTINE COSQI_64(N, WSAVE)

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




C INTERFACE
#include <sunperf.h>

void cosqi(int n, float *wsave);

void cosqi_64(long n, float *wsave);

Description

Oracle Solaris Studio Performance Library                            cosqi(3P)



NAME
       cosqi  -  initialize  the  array WSAVE, which is used in both COSQF and
       COSQB.


SYNOPSIS
       SUBROUTINE COSQI(N, WSAVE)

       INTEGER N
       REAL WSAVE(*)

       SUBROUTINE COSQI_64(N, WSAVE)

       INTEGER*8 N
       REAL WSAVE(*)




   F95 INTERFACE
       SUBROUTINE COSQI(N, WSAVE)

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

       SUBROUTINE COSQI_64(N, WSAVE)

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




   C INTERFACE
       #include <sunperf.h>

       void cosqi(int n, float *wsave);

       void cosqi_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  of  dimension (3 * N + 15) or greater.
                 COSQI needs to be called only once to initialize WSAVE before
                 calling  COSQF  and/or  COSQB if N and WSAVE remain unchanged
                 between these calls.  Thus, subsequent transforms or  inverse
                 transforms of same size can be obtained faster than the first
                 since they do not require initialization of the workspace.



                                  7 Nov 2015                         cosqi(3P)