vcosqb - synthesize a Fourier sequence from its representation in terms of a cosine series with odd wave numbers. The VCOSQ operations are normalized, so a call of VCOSQF followed by a call of VCOSQB will return the original sequence.
SUBROUTINE VCOSQB(M, N, X, XT, MDIMX, WSAVE) INTEGER M, N, MDIMX REAL X(MDIMX,*), XT(MDIMX,*), WSAVE(*) SUBROUTINE VCOSQB_64(M, N, X, XT, MDIMX, WSAVE) INTEGER*8 M, N, MDIMX REAL X(MDIMX,*), XT(MDIMX,*), WSAVE(*) F95 INTERFACE SUBROUTINE COSQB(M, N, X, XT, MDIMX, WSAVE) INTEGER :: M, N, MDIMX REAL, DIMENSION(:) :: WSAVE REAL, DIMENSION(:,:) :: X, XT SUBROUTINE COSQB_64(M, N, X, XT, MDIMX, WSAVE) INTEGER(8) :: M, N, MDIMX REAL, DIMENSION(:) :: WSAVE REAL, DIMENSION(:,:) :: X, XT C INTERFACE #include <sunperf.h> void vcosqb(int m, int n, float *x, float *xt, int mdimx, float *wsave); void vcosqb_64(long m, long n, float *x, float *xt, long mdimx, float *wsave);
Oracle Solaris Studio Performance Library vcosqb(3P) NAME vcosqb - synthesize a Fourier sequence from its representation in terms of a cosine series with odd wave numbers. The VCOSQ operations are normalized, so a call of VCOSQF followed by a call of VCOSQB will return the original sequence. SYNOPSIS SUBROUTINE VCOSQB(M, N, X, XT, MDIMX, WSAVE) INTEGER M, N, MDIMX REAL X(MDIMX,*), XT(MDIMX,*), WSAVE(*) SUBROUTINE VCOSQB_64(M, N, X, XT, MDIMX, WSAVE) INTEGER*8 M, N, MDIMX REAL X(MDIMX,*), XT(MDIMX,*), WSAVE(*) F95 INTERFACE SUBROUTINE COSQB(M, N, X, XT, MDIMX, WSAVE) INTEGER :: M, N, MDIMX REAL, DIMENSION(:) :: WSAVE REAL, DIMENSION(:,:) :: X, XT SUBROUTINE COSQB_64(M, N, X, XT, MDIMX, WSAVE) INTEGER(8) :: M, N, MDIMX REAL, DIMENSION(:) :: WSAVE REAL, DIMENSION(:,:) :: X, XT C INTERFACE #include <sunperf.h> void vcosqb(int m, int n, float *x, float *xt, int mdimx, float *wsave); void vcosqb_64(long m, long n, float *x, float *xt, long mdimx, float *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, the rows contain the sequences to be transformed. On exit, the quarter-wave cosine synthesis of the input. XT (input) A work array. 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 of dimension (2 * N + 15) or greater ini- tialized by VCOSQI. 7 Nov 2015 vcosqb(3P)