org.ojalgo.array.operation

Class HouseholderHermitian

java.lang.Object

org.ojalgo.array.operation.HouseholderHermitian

All Implemented Interfaces:

ArrayOperation

public final class HouseholderHermitian
extends Object
implements ArrayOperation

Performs Householder transformation from both sides simultaneously assuming that [A] is hermitian (square symmetric) [A] = [A]^H. Will only read from and write to the lower/left triangular part of [A].

Author:

apete

Constructor Summary

Constructors

Constructor and Description
HouseholderHermitian()

Method Summary

Modifier and Type	Method and Description
static void	invoke(double[] data, Householder.Primitive64 householder, double[] worker)
static <N extends Scalar<N>> void	invoke(N[] data, Householder.Generic<N> householder, N[] worker, Scalar.Factory<N> scalar)
int	threshold()
static void	tred2j(double[] data, double[] d, double[] e, boolean yesvecs) Ursprung JAMA men refactored till ojAlgos egna strukturer
static void	tred2nr(double[] data, double[] d, double[] e, boolean yesvecs) Ursprung Numerical Recipies.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ojalgo.array.operation.ArrayOperation

setAllOperationThresholds, setThresholdsMaxValue, setThresholdsMinValue

Constructor Detail

HouseholderHermitian

public HouseholderHermitian()

Method Detail

invoke

public static void invoke(double[] data,
                          Householder.Primitive64 householder,
                          double[] worker)

invoke

public static <N extends Scalar<N>> void invoke(N[] data,
                                                Householder.Generic<N> householder,
                                                N[] worker,
                                                Scalar.Factory<N> scalar)

tred2j

public static void tred2j(double[] data,
                          double[] d,
                          double[] e,
                          boolean yesvecs)

Ursprung JAMA men refactored till ojAlgos egna strukturer

tred2nr

public static void tred2nr(double[] data,
                           double[] d,
                           double[] e,
                           boolean yesvecs)

Ursprung Numerical Recipies. Samma som tred2j, men är inte lika snabb.

threshold

public int threshold()

Specified by:

threshold in interface ArrayOperation