larzt: generate T matrix

Functions
subroutine	clarzt (direct, storev, n, k, v, ldv, tau, t, ldt)
	CLARZT forms the triangular factor T of a block reflector H = I - vtvH.
subroutine	dlarzt (direct, storev, n, k, v, ldv, tau, t, ldt)
	DLARZT forms the triangular factor T of a block reflector H = I - vtvH.
subroutine	slarzt (direct, storev, n, k, v, ldv, tau, t, ldt)
	SLARZT forms the triangular factor T of a block reflector H = I - vtvH.
subroutine	zlarzt (direct, storev, n, k, v, ldv, tau, t, ldt)
	ZLARZT forms the triangular factor T of a block reflector H = I - vtvH.

Detailed Description