Module flag4j

Package org.flag4j.linalg.solvers.exact

Class RealExactSolver

java.lang.Object

org.flag4j.linalg.solvers.exact.ExactSolver<Matrix,Vector>

org.flag4j.linalg.solvers.exact.RealExactSolver

All Implemented Interfaces:

LinearMatrixSolver<Matrix,Vector>, LinearSolver<Matrix>

public class RealExactSolver
extends ExactSolver<Matrix,Vector>

Solver for solving a well determined system of linear equations in an exact sense using the LU decomposition.

Field Summary

Fields inherited from class org.flag4j.linalg.solvers.exact.ExactSolver

backSolver, forwardSolver, lu, LU, rowPermute

Constructor Summary

Constructors

Constructor	Description
RealExactSolver()	Constructs an exact LU solver where the coefficient matrix is real dense.

Method Summary

Modifier and Type	Method	Description
protected Matrix	permuteRows(Matrix B)	Permute the rows of a matrix using the row permutation matrix from the LU decomposition.
protected Vector	permuteRows(Vector b)	Permute the rows of a vector using the row permutation matrix from the LU decomposition.

Methods inherited from class org.flag4j.linalg.solvers.exact.ExactSolver

decompose, solve, solve

Methods inherited from class java.lang.Object

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

Constructor Details

RealExactSolver

public RealExactSolver()

Constructs an exact LU solver where the coefficient matrix is real dense.

Method Details

permuteRows

protected Vector permuteRows(Vector b)

Permute the rows of a vector using the row permutation matrix from the LU decomposition.

Specified by:

permuteRows in class ExactSolver<Matrix,Vector>

Parameters:

b - Vector to permute the rows of.

Returns:

A vector which is the result of applying the row permutation from the LU decomposition to the vector b.

permuteRows

protected Matrix permuteRows(Matrix B)

Permute the rows of a matrix using the row permutation matrix from the LU decomposition.

Specified by:

permuteRows in class ExactSolver<Matrix,Vector>

Parameters:

B - matrix to permute the rows of.

Returns:

A matrix which is the result of applying the row permutation from the LU decomposition to the matrix B.