org.ejml.alg.dense.linsol.qr

Class LinearSolverQrpHouseCol_D64

java.lang.Object

org.ejml.alg.dense.linsol.LinearSolverAbstract_D64

org.ejml.alg.dense.linsol.qr.BaseLinearSolverQrp_D64

org.ejml.alg.dense.linsol.qr.LinearSolverQrpHouseCol_D64

All Implemented Interfaces:

LinearSolver<DenseMatrix64F>

public class LinearSolverQrpHouseCol_D64
extends BaseLinearSolverQrp_D64

Performs a pseudo inverse solver using the QRColPivDecompositionHouseholderColumn_D64 decomposition directly. For details on how the pseudo inverse is computed see BaseLinearSolverQrp_D64.

Constructor Summary

Constructors

Constructor and Description
LinearSolverQrpHouseCol_D64(QRColPivDecompositionHouseholderColumn_D64 decomposition, boolean norm2Solution)

Method Summary

Modifier and Type	Method and Description
boolean	modifiesA() Returns true if the passed in matrix to LinearSolver.setA(org.ejml.data.Matrix) is modified.
boolean	modifiesB() Returns true if the passed in 'B' matrix to LinearSolver.solve(org.ejml.data.Matrix, org.ejml.data.Matrix) is modified.
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.qr.BaseLinearSolverQrp_D64

getDecomposition, invert, quality, setA

Methods inherited from class org.ejml.alg.dense.linsol.LinearSolverAbstract_D64

getA

Methods inherited from class java.lang.Object

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

Constructor Detail

LinearSolverQrpHouseCol_D64

public LinearSolverQrpHouseCol_D64(QRColPivDecompositionHouseholderColumn_D64 decomposition,
                                   boolean norm2Solution)

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.

modifiesA

public boolean modifiesA()

Description copied from interface: LinearSolver

Returns true if the passed in matrix to LinearSolver.setA(org.ejml.data.Matrix) is modified.

Returns:

true if A is modified in setA().

modifiesB

public boolean modifiesB()

Description copied from interface: LinearSolver

Returns true if the passed in 'B' matrix to LinearSolver.solve(org.ejml.data.Matrix, org.ejml.data.Matrix) is modified.

Returns:

true if B is modified in solve(B,X).