org.ejml.dense.row.linsol

Class LinearSolver_DDRB_to_DDRM

java.lang.Object

org.ejml.dense.row.linsol.LinearSolver_DDRB_to_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>

Direct Known Subclasses:

LinearSolverChol_DDRB, LinearSolverQrBlock64_DDRM

public class LinearSolver_DDRB_to_DDRM
extends java.lang.Object
implements org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRMaj>

Wrapper that allows DMatrixRBlock to implements LinearSolverDense. It works by converting DMatrixRMaj into DMatrixRBlock and calling the equivalent functions. Since a local copy is made all input matrices are never modified.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRBlock>	alg
protected org.ejml.data.DMatrixRBlock	blockA
protected org.ejml.data.DMatrixRBlock	blockB
protected org.ejml.data.DMatrixRBlock	blockX

Constructor Summary

Constructors

Constructor and Description
LinearSolver_DDRB_to_DDRM(org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRBlock> alg)

Method Summary

Modifier and Type	Method and Description
<D extends org.ejml.interfaces.decomposition.DecompositionInterface> D	getDecomposition()
void	invert(org.ejml.data.DMatrixRMaj A_inv) Creates a block matrix the same size as A_inv, inverts the matrix and copies the results back onto A_inv.
boolean	modifiesA()
boolean	modifiesB()
double	quality()
boolean	setA(org.ejml.data.DMatrixRMaj A) Converts 'A' into a block matrix and call setA() on the block matrix solver.
void	solve(org.ejml.data.DMatrixRMaj B, org.ejml.data.DMatrixRMaj X) Converts B and X into block matrices and calls the block matrix solve routine.

Methods inherited from class java.lang.Object

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

Field Detail

alg

protected org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRBlock> alg

blockA

protected org.ejml.data.DMatrixRBlock blockA

blockB

protected org.ejml.data.DMatrixRBlock blockB

blockX

protected org.ejml.data.DMatrixRBlock blockX

Constructor Detail

LinearSolver_DDRB_to_DDRM

public LinearSolver_DDRB_to_DDRM(org.ejml.interfaces.linsol.LinearSolverDense<org.ejml.data.DMatrixRBlock> alg)

Method Detail

setA

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

Converts 'A' into a block matrix and call setA() on the block matrix solver.

Specified by:

setA in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>

Parameters:

A - The A matrix in the linear equation. Not modified. Reference saved.

Returns:

true if it can solve the system.

quality

public double quality()

Specified by:

quality in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>

solve

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

Converts B and X into block matrices and calls the block matrix solve routine.

Specified by:

solve in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>

Parameters:

B - A matrix ℜ ^{m × p}. Not modified.

X - A matrix ℜ ^{n × p}, where the solution is written to. Modified.

invert

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

Creates a block matrix the same size as A_inv, inverts the matrix and copies the results back onto A_inv.

Specified by:

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

Parameters:

A_inv - Where the inverted matrix saved. Modified.

modifiesA

public boolean modifiesA()

Specified by:

modifiesA in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>

modifiesB

public boolean modifiesB()

Specified by:

modifiesB in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>

getDecomposition

public <D extends org.ejml.interfaces.decomposition.DecompositionInterface> D getDecomposition()

Specified by:

getDecomposition in interface org.ejml.interfaces.linsol.LinearSolver<org.ejml.data.DMatrixRMaj,org.ejml.data.DMatrixRMaj>