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

CholeskyDecompositionBlock64(boolean lower)

Method Summary

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.alg.dense.decomposition.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.