Package org.ejml.dense.row.decomposition.hessenberg

Class TridiagonalDecompositionHouseholder_MT_DDRM

java.lang.Object

org.ejml.dense.row.decomposition.hessenberg.TridiagonalDecompositionHouseholder_DDRM

org.ejml.dense.row.decomposition.hessenberg.TridiagonalDecompositionHouseholder_MT_DDRM

All Implemented Interfaces:

DecompositionInterface<DMatrixRMaj>, TridiagonalSimilarDecomposition<DMatrixRMaj>, TridiagonalSimilarDecomposition_F64<DMatrixRMaj>

public class TridiagonalDecompositionHouseholder_MT_DDRM
extends TridiagonalDecompositionHouseholder_DDRM

Concurrent implementation of TridiagonalDecompositionHouseholder_DDRM

Field Summary

Fields inherited from class org.ejml.dense.row.decomposition.hessenberg.TridiagonalDecompositionHouseholder_DDRM

b, gammas, N, QT, w

Constructor Summary

Constructors

Constructor	Description
TridiagonalDecompositionHouseholder_MT_DDRM()

Method Summary

Modifier and Type	Method	Description
void	householderSymmetric(int row, double gamma)	Performs the householder operations on left and right and side of the matrix.
protected void	rank1UpdateMultL(DMatrixRMaj A, double gamma, int colA0, int w0, int w1)
protected void	rank1UpdateMultR(DMatrixRMaj A, double gamma, int colA0, int w0, int w1)

Methods inherited from class org.ejml.dense.row.decomposition.hessenberg.TridiagonalDecompositionHouseholder_DDRM

decompose, getDiagonal, getQ, getQT, getT, init, inputModified

Methods inherited from class java.lang.Object

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

Constructor Details

TridiagonalDecompositionHouseholder_MT_DDRM

public TridiagonalDecompositionHouseholder_MT_DDRM()

Method Details

householderSymmetric

public void householderSymmetric(int row,
 double gamma)

Performs the householder operations on left and right and side of the matrix. Q^TAQ

Overrides:

householderSymmetric in class TridiagonalDecompositionHouseholder_DDRM

Parameters:

row - Specifies the submatrix.

gamma - The gamma for the householder operation

rank1UpdateMultL

protected void rank1UpdateMultL(DMatrixRMaj A,
 double gamma,
 int colA0,
 int w0,
 int w1)

Overrides:

rank1UpdateMultL in class TridiagonalDecompositionHouseholder_DDRM

rank1UpdateMultR

protected void rank1UpdateMultR(DMatrixRMaj A,
 double gamma,
 int colA0,
 int w0,
 int w1)

Overrides:

rank1UpdateMultR in class TridiagonalDecompositionHouseholder_DDRM