Package org.ejml.dense.row.decomposition.chol

Class CholeskyDecomposition_DDRB_to_DDRM

java.lang.Object

org.ejml.dense.row.decomposition.BaseDecomposition_DDRB_to_DDRM

org.ejml.dense.row.decomposition.chol.CholeskyDecomposition_DDRB_to_DDRM

All Implemented Interfaces:

CholeskyDecomposition<DMatrixRMaj>, CholeskyDecomposition_F64<DMatrixRMaj>, DecompositionInterface<DMatrixRMaj>

public class CholeskyDecomposition_DDRB_to_DDRM
extends BaseDecomposition_DDRB_to_DDRM
implements CholeskyDecomposition_F64<DMatrixRMaj>

Wrapper around CholeskyOuterForm_DDRB that allows it to process DMatrixRMaj.

Field Summary

Fields inherited from class org.ejml.dense.row.decomposition.BaseDecomposition_DDRB_to_DDRM

Ablock, alg, blockLength, workspace

Constructor Summary

Constructors

Constructor	Description
CholeskyDecomposition_DDRB_to_DDRM(boolean lower)
CholeskyDecomposition_DDRB_to_DDRM(DecompositionInterface<DMatrixRBlock> alg, int blockLength)

Method Summary

Modifier and Type	Method	Description
Complex_F64	computeDeterminant()	Computes the matrix's determinant using the decomposition.
DMatrixRMaj	getT(@Nullable DMatrixRMaj 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.dense.row.decomposition.BaseDecomposition_DDRB_to_DDRM

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.interfaces.decomposition.DecompositionInterface

decompose, inputModified

Constructor Details

CholeskyDecomposition_DDRB_to_DDRM

public CholeskyDecomposition_DDRB_to_DDRM(boolean lower)

CholeskyDecomposition_DDRB_to_DDRM

public CholeskyDecomposition_DDRB_to_DDRM(DecompositionInterface<DMatrixRBlock> alg,
 int blockLength)

Method Details

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<DMatrixRMaj>

Returns:

True if lower, false if upper.

getT

public DMatrixRMaj getT(@Nullable
 @Nullable DMatrixRMaj 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<DMatrixRMaj>

Parameters:

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

Returns:

A lower or upper triangular matrix.

computeDeterminant

public Complex_F64 computeDeterminant()

Description copied from interface: CholeskyDecomposition_F64

Computes the matrix's determinant using the decomposition.

Specified by:

computeDeterminant in interface CholeskyDecomposition_F64<DMatrixRMaj>

Returns:

The determinant.