SUBROUTINE ZUNGQL( M, N, K, A, LDA, TAU, WORK, LWORK, INFO) DOUBLE COMPLEX A(LDA,*), TAU(*), WORK(*) INTEGER M, N, K, LDA, LWORK, INFO SUBROUTINE ZUNGQL_64( M, N, K, A, LDA, TAU, WORK, LWORK, INFO) DOUBLE COMPLEX A(LDA,*), TAU(*), WORK(*) INTEGER*8 M, N, K, LDA, LWORK, INFO
SUBROUTINE UNGQL( M, [N], [K], A, [LDA], TAU, [WORK], [LWORK], [INFO]) COMPLEX(8), DIMENSION(:) :: TAU, WORK COMPLEX(8), DIMENSION(:,:) :: A INTEGER :: M, N, K, LDA, LWORK, INFO SUBROUTINE UNGQL_64( M, [N], [K], A, [LDA], TAU, [WORK], [LWORK], * [INFO]) COMPLEX(8), DIMENSION(:) :: TAU, WORK COMPLEX(8), DIMENSION(:,:) :: A INTEGER(8) :: M, N, K, LDA, LWORK, INFO
void zungql(int m, int n, int k, doublecomplex *a, int lda, doublecomplex *tau, int *info);
void zungql_64(long m, long n, long k, doublecomplex *a, long lda, doublecomplex *tau, long *info);
Q = H(k) . . . H(2) H(1)
as returned by CGEQLF.
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.