Jampack

Class Zhess

java.lang.Object

Jampack.Zhess

public class Zhess
extends Object

Zhess implements the unitary reduction to Hessenberg form by a unitary similarity transformation. Specifically, given a square matrix A, there is a unitary matrix U such that

      H = U^H AU

is upper Hessenberg. Zhess represents U and H as Zmats.

Version:

Pre-alpha

Author:

G. W. Stewart

Field Summary

Fields

Modifier and Type	Field and Description
Zmat	H The upper Hessenberg matrix
Zmat	U The unitary matrix

Constructor Summary

Constructors

Constructor and Description
Zhess(Zmat A) Creates a Zhess from a square Zmat.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

H

public Zmat H

The upper Hessenberg matrix

U

public Zmat U

The unitary matrix

Constructor Detail

Zhess

public Zhess(Zmat A)
      throws JampackException

Creates a Zhess from a square Zmat. Throws a JampackException for nonsquare matrx.

Parameters:

A - A Zmat

Throws:

JampackException - Thrown if A is not square.