  hess
  Builtin Function



      SSyynnooppssiiss
        Find the Hessenberg form of a matrix.

      SSyynnttaaxx
        hess( _A )

      DDeessccrriippttiioonn
        Hess finds the Hessenberg from of a matrix. Hess takes a single
        matrix, _A, 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.












































