org.ejml.alg.dense.decomposition.chol

Class CholeskyDecompositionBlock64

java.lang.Object

org.ejml.alg.dense.decomposition.BaseDecompositionBlock64

org.ejml.alg.dense.decomposition.chol.CholeskyDecompositionBlock64

All Implemented Interfaces:

CholeskyDecomposition<DenseMatrix64F>, DecompositionInterface<DenseMatrix64F>

public class CholeskyDecompositionBlock64
extends BaseDecompositionBlock64
implements CholeskyDecomposition<DenseMatrix64F>

Wrapper around BlockCholeskyOuterForm that allows it to process DenseMatrix64F.

Author:

Peter Abeles

Field Summary

Fields inherited from class org.ejml.alg.dense.decomposition.BaseDecompositionBlock64

Ablock, alg, blockLength, tmp

Constructor Summary

Constructors

Constructor and Description
CholeskyDecompositionBlock64(boolean lower)

Method Summary

Methods

Modifier and Type	Method and Description
DenseMatrix64F	getT(DenseMatrix64F T) Returns the triangular matrix from the decomposition.
boolean	isLower() If true the decomposition was for a lower triangular matrix.

Methods inherited from class org.ejml.alg.dense.decomposition.BaseDecompositionBlock64

convertBlockToRow, decompose, inputModified

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ejml.factory.DecompositionInterface

decompose, inputModified

Constructor Detail

CholeskyDecompositionBlock64

public CholeskyDecompositionBlock64(boolean lower)

Method Detail

isLower

public boolean isLower()

Description copied from interface: CholeskyDecomposition

If true the decomposition was for a lower triangular matrix. If false it was for an upper triangular matrix.

Specified by:

isLower in interface CholeskyDecomposition<DenseMatrix64F>

Returns:

True if lower, false if upper.

getT

public DenseMatrix64F getT(DenseMatrix64F T)

Description copied from interface: CholeskyDecomposition

Returns the triangular matrix from the decomposition.

If an input is provided that matrix is used to write the results to. Otherwise a new matrix is created and the results written to it.

Specified by:

getT in interface CholeskyDecomposition<DenseMatrix64F>

Parameters:

T - If not null then the decomposed matrix is written here.

Returns:

A lower or upper triangular matrix.