geqrf: QR factor

Functions
subroutine	cgeqrf (m, n, a, lda, tau, work, lwork, info)
	CGEQRF
subroutine	dgeqrf (m, n, a, lda, tau, work, lwork, info)
	DGEQRF
subroutine	sgeqrf (m, n, a, lda, tau, work, lwork, info)
	SGEQRF
subroutine	zgeqrf (m, n, a, lda, tau, work, lwork, info)
	ZGEQRF

Detailed Description