SUBROUTINE SORMQL( SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, WORK, * LWORK, INFO) CHARACTER * 1 SIDE, TRANS INTEGER M, N, K, LDA, LDC, LWORK, INFO REAL A(LDA,*), TAU(*), C(LDC,*), WORK(*) SUBROUTINE SORMQL_64( SIDE, TRANS, M, N, K, A, LDA, TAU, C, LDC, * WORK, LWORK, INFO) CHARACTER * 1 SIDE, TRANS INTEGER*8 M, N, K, LDA, LDC, LWORK, INFO REAL A(LDA,*), TAU(*), C(LDC,*), WORK(*)
SUBROUTINE ORMQL( SIDE, [TRANS], [M], [N], [K], A, [LDA], TAU, C, * [LDC], [WORK], [LWORK], [INFO]) CHARACTER(LEN=1) :: SIDE, TRANS INTEGER :: M, N, K, LDA, LDC, LWORK, INFO REAL, DIMENSION(:) :: TAU, WORK REAL, DIMENSION(:,:) :: A, C SUBROUTINE ORMQL_64( SIDE, [TRANS], [M], [N], [K], A, [LDA], TAU, C, * [LDC], [WORK], [LWORK], [INFO]) CHARACTER(LEN=1) :: SIDE, TRANS INTEGER(8) :: M, N, K, LDA, LDC, LWORK, INFO REAL, DIMENSION(:) :: TAU, WORK REAL, DIMENSION(:,:) :: A, C
void sormql(char side, char trans, int m, int n, int k, float *a, int lda, float *tau, float *c, int ldc, int *info);
void sormql_64(char side, char trans, long m, long n, long k, float *a, long lda, float *tau, float *c, long ldc, long *info);
where Q is a real orthogonal matrix defined as the product of k elementary reflectors
Q = H(k) . . . H(2) H(1)
as returned by SGEQLF. Q is of order M if SIDE = 'L' and of order N if SIDE = 'R'.
If LWORK = -1, then a workspace query is assumed; the routine only calculates the optimal size of the WORK array, returns this value as the first entry of the WORK array, and no error message related to LWORK is issued by XERBLA.