org.ejml.alg.dense.linsol.lu

Class LinearSolverLu

java.lang.Object

org.ejml.alg.dense.linsol.LinearSolverAbstract

org.ejml.alg.dense.linsol.lu.LinearSolverLuBase

org.ejml.alg.dense.linsol.lu.LinearSolverLu

All Implemented Interfaces:

LinearSolver<DenseMatrix64F>

public class LinearSolverLu
extends LinearSolverLuBase

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.

Author:

Peter Abeles

Field Summary

Fields inherited from class org.ejml.alg.dense.linsol.lu.LinearSolverLuBase

decomp

Fields inherited from class org.ejml.alg.dense.linsol.LinearSolverAbstract

A, numCols, numRows

Constructor Summary

Constructors

Constructor and Description
LinearSolverLu(LUDecompositionBase_D64 decomp)
LinearSolverLu(LUDecompositionBase_D64 decomp, boolean doImprove)

Method Summary

Methods

Modifier and Type	Method and Description
void	solve(DenseMatrix64F b, DenseMatrix64F x) Solves for X in the linear system, A*X=B.

Methods inherited from class org.ejml.alg.dense.linsol.lu.LinearSolverLuBase

improveSol, invert, modifiesA, modifiesB, quality, setA

Methods inherited from class org.ejml.alg.dense.linsol.LinearSolverAbstract

_setA, getA

Methods inherited from class java.lang.Object

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

Constructor Detail

LinearSolverLu

public LinearSolverLu(LUDecompositionBase_D64 decomp)

LinearSolverLu

public LinearSolverLu(LUDecompositionBase_D64 decomp,
              boolean doImprove)

Method Detail

solve

public void solve(DenseMatrix64F b,
         DenseMatrix64F 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.