vdsinti
vdsinti - initialize the array WSAVE, which is used in subroutine VSINT.
SUBROUTINE VDSINTI( N, WSAVE)
INTEGER N
DOUBLE PRECISION WSAVE(*)
SUBROUTINE VDSINTI_64( N, WSAVE)
INTEGER*8 N
DOUBLE PRECISION WSAVE(*)
SUBROUTINE VSINTI( N, WSAVE)
INTEGER :: N
REAL(8), DIMENSION(:) :: WSAVE
SUBROUTINE VSINTI_64( N, WSAVE)
INTEGER(8) :: N
REAL(8), DIMENSION(:) :: WSAVE
#include <sunperf.h>
void vdsinti(int n, double *wsave);
void vdsinti_64(long n, double *wsave);
-
* 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.