cung2r - generate an m by n complex matrix Q with orthonormal columns,
SUBROUTINE CUNG2R( M, N, K, A, LDA, TAU, WORK, INFO) COMPLEX A(LDA,*), TAU(*), WORK(*) INTEGER M, N, K, LDA, INFO
SUBROUTINE CUNG2R_64( M, N, K, A, LDA, TAU, WORK, INFO) COMPLEX A(LDA,*), TAU(*), WORK(*) INTEGER*8 M, N, K, LDA, INFO
SUBROUTINE UNG2R( M, [N], [K], A, [LDA], TAU, [WORK], [INFO]) COMPLEX, DIMENSION(:) :: TAU, WORK COMPLEX, DIMENSION(:,:) :: A INTEGER :: M, N, K, LDA, INFO
SUBROUTINE UNG2R_64( M, [N], [K], A, [LDA], TAU, [WORK], [INFO]) COMPLEX, DIMENSION(:) :: TAU, WORK COMPLEX, DIMENSION(:,:) :: A INTEGER(8) :: M, N, K, LDA, INFO
#include <sunperf.h>
void cung2r(int m, int n, int k, complex *a, int lda, complex *tau, int *info);
void cung2r_64(long m, long n, long k, complex *a, long lda, complex *tau, long *info);
cung2r R generates an m by n complex matrix Q with orthonormal columns, which is defined as the first n columns of a product of k elementary reflectors of order m
Q = H(1) H(2) . . . H(k)
as returned by CGEQRF.
TAU(i)
must contain the scalar factor of the elementary
reflector H(i), as returned by CGEQRF.
dimension(N)
= 0: successful exit
< 0: if INFO = -i, the i-th argument has an illegal value