Package org.ejml.dense.row.linsol.lu

Class LinearSolverLu_DDRM

java.lang.Object

org.ejml.dense.row.linsol.LinearSolverAbstract_DDRM

org.ejml.dense.row.linsol.lu.LinearSolverLuBase_DDRM

org.ejml.dense.row.linsol.lu.LinearSolverLu_DDRM

All Implemented Interfaces:

LinearSolver<DMatrixRMaj,DMatrixRMaj>, LinearSolverDense<DMatrixRMaj>

public class LinearSolverLu_DDRM
extends LinearSolverLuBase_DDRM

For each column in the B matrix it makes a copy, which is then solved for and writen into X. By making a copy of the column cpu cache issues are reduced.

Field Summary

Fields inherited from class org.ejml.dense.row.linsol.lu.LinearSolverLuBase_DDRM

decomp

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

A, numCols, numRows

Constructor Summary

Constructors

Constructor	Description
LinearSolverLu_DDRM(LUDecompositionBase_DDRM decomp)
LinearSolverLu_DDRM(LUDecompositionBase_DDRM decomp, boolean doImprove)

Method Summary

Modifier and Type	Method	Description
void	solve(DMatrixRMaj B, DMatrixRMaj X)	Solves for X in the linear system, A*X=B.

Methods inherited from class org.ejml.dense.row.linsol.lu.LinearSolverLuBase_DDRM

getDecomposition, improveSol, invert, modifiesA, modifiesB, quality, setA

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 Details

LinearSolverLu_DDRM

public LinearSolverLu_DDRM(LUDecompositionBase_DDRM decomp)

LinearSolverLu_DDRM

public LinearSolverLu_DDRM(LUDecompositionBase_DDRM decomp,
 boolean doImprove)

Method Details

solve

public void solve(DMatrixRMaj B,
 DMatrixRMaj X)

Description copied from interface: LinearSolver

Solves for X in the linear system, A*X=B.

In some implementations 'B' and 'X' can be the same instance of a variable. Call LinearSolver.modifiesB() to determine if 'B' is modified.

Parameters:

B - A matrix ℜ ^{m × p}. Might be modified.

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