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

LinearSolverLu(LUDecompositionBase decomp)

LinearSolverLu(LUDecompositionBase decomp, boolean doImprove)

Method Summary

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 decomp)

LinearSolverLu

public LinearSolverLu(LUDecompositionBase 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.