org.ejml.dense.row.decompose.chol

Class CholeskyDecompositionCommon_CDRM

java.lang.Object

org.ejml.dense.row.decompose.chol.CholeskyDecompositionCommon_CDRM

All Implemented Interfaces:

org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.CMatrixRMaj>, org.ejml.interfaces.decomposition.CholeskyDecomposition_F32<org.ejml.data.CMatrixRMaj>, org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.CMatrixRMaj>

Direct Known Subclasses:

CholeskyDecompositionInner_CDRM

public abstract class CholeskyDecompositionCommon_CDRM
extends java.lang.Object
implements org.ejml.interfaces.decomposition.CholeskyDecomposition_F32<org.ejml.data.CMatrixRMaj>

This is an abstract class for a Cholesky decomposition. It provides the solvers, but the actual decomposition is provided in other classes.

See Also:

CholeskyDecomposition_F32

Field Summary

Fields

Modifier and Type	Field and Description
protected org.ejml.data.Complex_F32	det
protected boolean	lower
protected int	n
protected float[]	t
protected org.ejml.data.CMatrixRMaj	T

Constructor Summary

Constructors

Constructor and Description
CholeskyDecompositionCommon_CDRM(boolean lower) Specifies if a lower or upper variant should be constructed.

Method Summary

Modifier and Type	Method and Description
org.ejml.data.CMatrixRMaj	_getT() Returns the raw decomposed matrix.
org.ejml.data.Complex_F32	computeDeterminant()
boolean	decompose(org.ejml.data.CMatrixRMaj mat)
protected abstract boolean	decomposeLower() Performs an lower triangular decomposition.
protected abstract boolean	decomposeUpper() Performs an upper triangular decomposition.
org.ejml.data.CMatrixRMaj	getT(org.ejml.data.CMatrixRMaj T)
boolean	inputModified()
boolean	isLower()

Methods inherited from class java.lang.Object

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

Field Detail

n

protected int n

T

protected org.ejml.data.CMatrixRMaj T

t

protected float[] t

lower

protected boolean lower

det

protected org.ejml.data.Complex_F32 det

Constructor Detail

CholeskyDecompositionCommon_CDRM

public CholeskyDecompositionCommon_CDRM(boolean lower)

Specifies if a lower or upper variant should be constructed.

Parameters:

lower - should a lower or upper triangular matrix be used.

Method Detail

isLower

public boolean isLower()

Specified by:

isLower in interface org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.CMatrixRMaj>

decompose

public boolean decompose(org.ejml.data.CMatrixRMaj mat)

Specified by:

decompose in interface org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.CMatrixRMaj>

inputModified

public boolean inputModified()

Specified by:

inputModified in interface org.ejml.interfaces.decomposition.DecompositionInterface<org.ejml.data.CMatrixRMaj>

decomposeLower

protected abstract boolean decomposeLower()

Performs an lower triangular decomposition.

Returns:

true if the matrix was decomposed.

decomposeUpper

protected abstract boolean decomposeUpper()

Performs an upper triangular decomposition.

Returns:

true if the matrix was decomposed.

getT

public org.ejml.data.CMatrixRMaj getT(org.ejml.data.CMatrixRMaj T)

Specified by:

getT in interface org.ejml.interfaces.decomposition.CholeskyDecomposition<org.ejml.data.CMatrixRMaj>

_getT

public org.ejml.data.CMatrixRMaj _getT()

Returns the raw decomposed matrix.

Returns:

A lower or upper triangular matrix.

computeDeterminant

public org.ejml.data.Complex_F32 computeDeterminant()

Specified by:

computeDeterminant in interface org.ejml.interfaces.decomposition.CholeskyDecomposition_F32<org.ejml.data.CMatrixRMaj>