edu.emory.mathcs.csparsej.tdouble

Class Dcs_happly

java.lang.Object

edu.emory.mathcs.csparsej.tdouble.Dcs_happly

public class Dcs_happly
extends java.lang.Object

Apply Householder reflection.

Constructor Summary

Constructors

Constructor and Description
Dcs_happly()

Method Summary

Modifier and Type	Method and Description
static boolean	cs_happly(Dcs_common.Dcs V, int i, double beta, double[] x) Applies a Householder reflection to a dense vector, x = (I - beta*v*v')*x.

Methods inherited from class java.lang.Object

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

Constructor Detail

Dcs_happly

public Dcs_happly()

Method Detail

cs_happly

public static boolean cs_happly(Dcs_common.Dcs V,
                                int i,
                                double beta,
                                double[] x)

Applies a Householder reflection to a dense vector, x = (I - beta*v*v')*x.

Parameters:

V - column-compressed matrix of Householder vectors

i - v = V(:,i), the ith column of V

beta - scalar beta

x - vector x of size m

Returns:

true if successful, false on error