org.jutil.math.matrix
Interface LinSolver

All Known Implementing Classes:

QRLinSolver, LULinSolver

public interface LinSolver

A class of objects that solve linear systems of equations represented as a matrix.

Version:

$Revision: 1.3 $

Author:

Marko van Dooren

Field Summary

static java.lang.String

CVS_REVISION

Method Summary

Column

solve(Matrix A, Column b) public behavior pre A != null; pre b != null; pre b.size() == A.getNbRows(); pre A.isSquare(); pre (* A is nonsingular *); // Aside from rounding errors, A * x = b post (* A.times(\result).equals(b) *) Solve the system of linear equations as defined by A * x = b

Field Detail

CVS_REVISION

public static final java.lang.String CVS_REVISION

Method Detail

solve

public Column solve(Matrix A,
                    Column b)

public behavior

pre A != null;
pre b != null;
pre b.size() == A.getNbRows();
pre A.isSquare();
pre (* A is nonsingular *);

// Aside from rounding errors, A * x = b
post (* A.times(\result).equals(b) *)
Solve the system of linear equations as defined by A * x = b

Parameters:

A - The matrix containing the coefficients of the equation. Each row represents an equation. The i-th element of a row represents the coefficient of the i-th variable in the equation represented by that row.

b - The column representing the right-hand sides of the equation. The right-handig side of the i-th row is the i-th element of the Column