hess:

Syntax:	hess( A )

Description:

	Hess finds the Hessenberg from of a matrix. Hess takes a
	single matrix as input, and returns a list with two elements,
	h, and p.

		A = p * h * p'		where A is the input

	Hess uses the LAPACK subroutines DGEHRD, DORGHR, and ZGEHRD,
	ZUNGHR.
