vdsinqb (3p)

Name

vdsinqb - synthesize a Fourier sequence from its representation in terms of a sine series with odd wave numbers. The VSINQ operations are normalized, so a call of VSINQF followed by a call of VSINQB will return the original sequence.

Synopsis

SUBROUTINE VDSINQB(M, N, X, XT, MDIMX, WSAVE)

INTEGER M, N, MDIMX
DOUBLE PRECISION X(MDIMX,*), XT(MDIMX,*), WSAVE(*)

SUBROUTINE VDSINQB_64(M, N, X, XT, MDIMX, WSAVE)

INTEGER*8 M, N, MDIMX
DOUBLE PRECISION X(MDIMX,*), XT(MDIMX,*), WSAVE(*)




F95 INTERFACE
SUBROUTINE SINQB(M, N, X, XT, MDIMX, WSAVE)

INTEGER :: M, N, MDIMX
REAL(8), DIMENSION(:) :: WSAVE
REAL(8), DIMENSION(:,:) :: X, XT

SUBROUTINE SINQB_64(M, N, X, XT, MDIMX, WSAVE)

INTEGER(8) :: M, N, MDIMX
REAL(8), DIMENSION(:) :: WSAVE
REAL(8), DIMENSION(:,:) :: X, XT




C INTERFACE
#include <sunperf.h>

void vdsinqb(int m, int n, double *x, double  *xt,  int  mdimx,  double
*wsave);

void vdsinqb_64(long m, long n, double *x, double *xt, long mdimx, dou-
ble *wsave);

Description

Oracle Solaris Studio Performance Library                          vdsinqb(3P)



NAME
       vdsinqb  -  synthesize  a  Fourier  sequence from its representation in
       terms of a sine series with odd wave numbers.  The VSINQ operations are
       normalized,  so  a  call  of  VSINQF  followed by a call of VSINQB will
       return the original sequence.


SYNOPSIS
       SUBROUTINE VDSINQB(M, N, X, XT, MDIMX, WSAVE)

       INTEGER M, N, MDIMX
       DOUBLE PRECISION X(MDIMX,*), XT(MDIMX,*), WSAVE(*)

       SUBROUTINE VDSINQB_64(M, N, X, XT, MDIMX, WSAVE)

       INTEGER*8 M, N, MDIMX
       DOUBLE PRECISION X(MDIMX,*), XT(MDIMX,*), WSAVE(*)




   F95 INTERFACE
       SUBROUTINE SINQB(M, N, X, XT, MDIMX, WSAVE)

       INTEGER :: M, N, MDIMX
       REAL(8), DIMENSION(:) :: WSAVE
       REAL(8), DIMENSION(:,:) :: X, XT

       SUBROUTINE SINQB_64(M, N, X, XT, MDIMX, WSAVE)

       INTEGER(8) :: M, N, MDIMX
       REAL(8), DIMENSION(:) :: WSAVE
       REAL(8), DIMENSION(:,:) :: X, XT




   C INTERFACE
       #include <sunperf.h>

       void vdsinqb(int m, int n, double *x, double  *xt,  int  mdimx,  double
                 *wsave);

       void vdsinqb_64(long m, long n, double *x, double *xt, long mdimx, dou-
                 ble *wsave);



ARGUMENTS
       M (input)
                 The number of sequences to be transformed.  M >= 0.


       N (input) Length of the sequence to be transformed.  These  subroutines
                 are most efficient when N is a product of small primes.  N >=
                 0.


       X (input/output)
                 On entry, a real two- dimensional array  with  dimensions  of
                 (MDIMX  x  N)  whose  rows contain the sequences to be trans-
                 formed.  On exit, the  quarter-wave  sine  synthesis  of  the
                 input.


       XT (input)
                 A real two-dimensional work array with dimensions of (MDIMX x
                 N).


       MDIMX (input)
                 Leading dimension of the arrays X and XT as  specified  in  a
                 dimension or type statement.  MDIMX >= M.


       WSAVE (input)
                 On  entry,  an  array with dimension of at least (2 * N + 15)
                 for vector subroutines, initialized by VSINQI.




                                  7 Nov 2015                       vdsinqb(3P)