zfft3f - compute the Fourier coefficients of a periodic sequence. The FFT operations are unnormalized, so a call of ZFFT3F followed by a call of ZFFT3B will multiply the input sequence by M*N*K.
SUBROUTINE ZFFT3F( M, N, K, A, LDA, LD2A, WORK, LWORK) DOUBLE COMPLEX A(LDA,LD2A,*) INTEGER M, N, K, LDA, LD2A, LWORK DOUBLE PRECISION WORK(*)
SUBROUTINE ZFFT3F_64( M, N, K, A, LDA, LD2A, WORK, LWORK) DOUBLE COMPLEX A(LDA,LD2A,*) INTEGER*8 M, N, K, LDA, LD2A, LWORK DOUBLE PRECISION WORK(*)
SUBROUTINE FFT3F( [M], [N], [K], A, [LDA], LD2A, WORK, LWORK) COMPLEX(8), DIMENSION(:,:,:) :: A INTEGER :: M, N, K, LDA, LD2A, LWORK REAL(8), DIMENSION(:) :: WORK
SUBROUTINE FFT3F_64( [M], [N], [K], A, [LDA], LD2A, WORK, LWORK) COMPLEX(8), DIMENSION(:,:,:) :: A INTEGER(8) :: M, N, K, LDA, LD2A, LWORK REAL(8), DIMENSION(:) :: WORK
#include <sunperf.h>
void zfft3f(int m, int n, int k, doublecomplex *a, int lda, int ld2a, double *work, int lwork);
void zfft3f_64(long m, long n, long k, doublecomplex *a, long lda, long ld2a, double *work, long lwork);
A(M,N,K)
that contains the sequences to be transformed.