dlatzm - routine is deprecated and has been replaced by routine DORMRZ
SUBROUTINE DLATZM(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER*1 SIDE INTEGER M, N, INCV, LDC DOUBLE PRECISION TAU DOUBLE PRECISION V(*), C1(LDC,*), C2(LDC,*), WORK(*) SUBROUTINE DLATZM_64(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER*1 SIDE INTEGER*8 M, N, INCV, LDC DOUBLE PRECISION TAU DOUBLE PRECISION V(*), C1(LDC,*), C2(LDC,*), WORK(*) F95 INTERFACE SUBROUTINE LATZM(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER(LEN=1) :: SIDE INTEGER :: M, N, INCV, LDC REAL(8) :: TAU REAL(8), DIMENSION(:) :: V, WORK REAL(8), DIMENSION(:,:) :: C1, C2 SUBROUTINE LATZM_64(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER(LEN=1) :: SIDE INTEGER(8) :: M, N, INCV, LDC REAL(8) :: TAU REAL(8), DIMENSION(:) :: V, WORK REAL(8), DIMENSION(:,:) :: C1, C2 C INTERFACE #include <sunperf.h> void dlatzm(char side, int m, int n, double *v, int incv, double tau, double *c1, double *c2, int ldc); void dlatzm_64(char side, long m, long n, double *v, long incv, double tau, double *c1, double *c2, long ldc);
Oracle Solaris Studio Performance Library dlatzm(3P) NAME dlatzm - routine is deprecated and has been replaced by routine DORMRZ SYNOPSIS SUBROUTINE DLATZM(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER*1 SIDE INTEGER M, N, INCV, LDC DOUBLE PRECISION TAU DOUBLE PRECISION V(*), C1(LDC,*), C2(LDC,*), WORK(*) SUBROUTINE DLATZM_64(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER*1 SIDE INTEGER*8 M, N, INCV, LDC DOUBLE PRECISION TAU DOUBLE PRECISION V(*), C1(LDC,*), C2(LDC,*), WORK(*) F95 INTERFACE SUBROUTINE LATZM(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER(LEN=1) :: SIDE INTEGER :: M, N, INCV, LDC REAL(8) :: TAU REAL(8), DIMENSION(:) :: V, WORK REAL(8), DIMENSION(:,:) :: C1, C2 SUBROUTINE LATZM_64(SIDE, M, N, V, INCV, TAU, C1, C2, LDC, WORK) CHARACTER(LEN=1) :: SIDE INTEGER(8) :: M, N, INCV, LDC REAL(8) :: TAU REAL(8), DIMENSION(:) :: V, WORK REAL(8), DIMENSION(:,:) :: C1, C2 C INTERFACE #include <sunperf.h> void dlatzm(char side, int m, int n, double *v, int incv, double tau, double *c1, double *c2, int ldc); void dlatzm_64(char side, long m, long n, double *v, long incv, double tau, double *c1, double *c2, long ldc); PURPOSE dlatzm routine is deprecated and has been replaced by routine DORMRZ. DLATZM applies a Householder matrix generated by DTZRQF to a matrix. Let P = I - tau*u*u', u = ( 1 ), ( v ) where v is an (m-1) vector if SIDE = 'L', or a (n-1) vector if SIDE = 'R'. If SIDE equals 'L', let C = [ C1 ] 1 [ C2 ] m-1 n Then C is overwritten by P*C. If SIDE equals 'R', let C = [ C1, C2 ] m 1 n-1 Then C is overwritten by C*P. ARGUMENTS SIDE (input) = 'L': form P * C = 'R': form C * P M (input) The number of rows of the matrix C. N (input) The number of columns of the matrix C. V (input) (1 + (M-1)*abs(INCV)) if SIDE = 'L' (1 + (N-1)*abs(INCV)) if SIDE = 'R' The vector v in the representation of P. V is not used if TAU = 0. INCV (input) The increment between elements of v. INCV <> 0 TAU (input) The value tau in the representation of P. C1 (input/output) (LDC,N) if SIDE = 'L' (M,1) if SIDE = 'R' On entry, the n- vector C1 if SIDE = 'L', or the m-vector C1 if SIDE = 'R'. On exit, the first row of P*C if SIDE = 'L', or the first column of C*P if SIDE = 'R'. C2 (input/output) (LDC, N) if SIDE = 'L' (LDC, N-1) if SIDE = 'R' On entry, the (m - 1) x n matrix C2 if SIDE = 'L', or the m x (n - 1) matrix C2 if SIDE = 'R'. On exit, rows 2:m of P*C if SIDE = 'L', or columns 2:m of C*P if SIDE = 'R'. LDC (input) The leading dimension of the arrays C1 and C2. LDC >= (1,M). WORK (workspace) (N) if SIDE = 'L' (M) if SIDE = 'R' 7 Nov 2015 dlatzm(3P)