Package org.ejml.dense.row.linsol.chol

Class LinearSolverChol_DDRM

java.lang.Object

org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

org.ejml.dense.row.linsol.chol.LinearSolverChol_DDRM

All Implemented Interfaces:

org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>, org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRMaj>

public class LinearSolverChol_DDRM
extends LinearSolverAbstract_DDRM

Field Summary

Fields inherited from class org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

A, numCols, numRows

Constructor Summary

Constructors

Constructor	Description
LinearSolverChol_DDRM(CholeskyDecompositionCommon_DDRM decomposer)

Method Summary

Modifier and Type	Method	Description
org.ejml.interfaces.decomposition.CholeskyDecomposition_F64<org.ejml.data.DMatrixRMaj>	getDecomposition()
void	invert(org.ejml.data.DMatrixRMaj inv)	Sets the matrix 'inv' equal to the inverse of the matrix that was decomposed.
boolean	modifiesA()
boolean	modifiesB()
double	quality()
boolean	setA(org.ejml.data.DMatrixRMaj A)
void	setToInverseL(double[] a)	Sets the matrix to the inverse using a lower triangular matrix.
void	solve(org.ejml.data.DMatrixRMaj B, org.ejml.data.DMatrixRMaj X)	Using the decomposition, finds the value of 'X' in the linear equation below: A*x = b where A has dimension of n by n, x and b are n by m dimension.
static void	solveLower(org.ejml.data.DMatrixRMaj L, org.ejml.data.DMatrixRMaj B, org.ejml.data.DMatrixRMaj X, double[] vv)

Methods inherited from class org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

_setA, getA

Methods inherited from class java.lang.Object

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

Constructor Detail

LinearSolverChol_DDRM

public LinearSolverChol_DDRM(CholeskyDecompositionCommon_DDRM decomposer)

Method Detail

setA

public boolean setA(org.ejml.data.DMatrixRMaj A)

quality

public double quality()

solve

public void solve(org.ejml.data.DMatrixRMaj B,
                  org.ejml.data.DMatrixRMaj X)

Using the decomposition, finds the value of 'X' in the linear equation below:
A*x = b
where A has dimension of n by n, x and b are n by m dimension.

*Note* that 'b' and 'x' can be the same matrix instance.

Parameters:

B - A matrix that is n by m. Not modified.

X - An n by m matrix where the solution is writen to. Modified.

solveLower

public static void solveLower(org.ejml.data.DMatrixRMaj L,
                              org.ejml.data.DMatrixRMaj B,
                              org.ejml.data.DMatrixRMaj X,
                              double[] vv)

invert

public void invert(org.ejml.data.DMatrixRMaj inv)

Sets the matrix 'inv' equal to the inverse of the matrix that was decomposed.

Specified by:

invert in interface org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRMaj>

Overrides:

invert in class LinearSolverAbstract_DDRM

Parameters:

inv - Where the value of the inverse will be stored. Modified.

setToInverseL

public void setToInverseL(double[] a)

Sets the matrix to the inverse using a lower triangular matrix.

modifiesA

public boolean modifiesA()

modifiesB

public boolean modifiesB()

getDecomposition

public org.ejml.interfaces.decomposition.CholeskyDecomposition_F64<org.ejml.data.DMatrixRMaj> getDecomposition()