vsinti


NAME

vsinti - initialize the array WSAVE, which is used in subroutine VSINT.


SYNOPSIS

  SUBROUTINE VSINTI( N, WSAVE)
  INTEGER N
  REAL WSAVE(*)
 
  SUBROUTINE VSINTI_64( N, WSAVE)
  INTEGER*8 N
  REAL WSAVE(*)
 

F95 INTERFACE

  SUBROUTINE VSINTI( N, WSAVE)
  INTEGER :: N
  REAL, DIMENSION(:) :: WSAVE
 
  SUBROUTINE VSINTI_64( N, WSAVE)
  INTEGER(8) :: N
  REAL, DIMENSION(:) :: WSAVE
 

C INTERFACE

#include <sunperf.h>

void vsinti(int n, float *wsave);

void vsinti_64(long n, float *wsave);


ARGUMENTS

* N (input)
Length of the sequence to be transformed. N >= 0.

* WSAVE (input)
On entry, an array of dimension (2N + N/2 + 15) or greater. VSINTI is called once to initialize WSAVE before calling VSINT and need not be called again between calls to VSINT if N and WSAVE remain unchanged. Thus, subsequent transforms of same size can be obtained faster than the first since they do not require initialization of the workspace.