/*
* Copyright (C) 2003-2006 Bjørn-Ove Heimsund
*
* This file is part of MTJ.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package no.uib.cipr.matrix;
import no.uib.cipr.matrix.Matrices;
import no.uib.cipr.matrix.NotConvergedException;
import no.uib.cipr.matrix.SymmTridiagEVD;
import no.uib.cipr.matrix.SymmTridiagMatrix;
/**
* Test of the symmetric, tridiagonal eigenvalue solver
*/
public class SymmTridiagEigenvalueTest extends SymmEigenvalueTestAbstract {
private SymmTridiagMatrix T;
private final int max = 100;
public SymmTridiagEigenvalueTest(String arg0) {
super(arg0);
}
@Override
protected void setUp() throws Exception {
int n = Utilities.getInt(1, max);
A = Matrices.random(n, n);
T = new SymmTridiagMatrix(A);
}
public void testStaticFactorize() throws NotConvergedException {
SymmTridiagEVD evd = SymmTridiagEVD.factorize(A);
assertEquals(T, evd.getEigenvalues(), evd.getEigenvectors());
}
public void testFactor() throws NotConvergedException {
SymmTridiagEVD evd = new SymmTridiagEVD(A.numRows());
evd.factor(T.copy());
assertEquals(T, evd.getEigenvalues(), evd.getEigenvectors());
}
public void testRepeatFactor() throws NotConvergedException {
SymmTridiagEVD evd = new SymmTridiagEVD(A.numRows());
evd.factor(T.copy());
assertEquals(T, evd.getEigenvalues(), evd.getEigenvectors());
evd.factor(T.copy());
assertEquals(T, evd.getEigenvalues(), evd.getEigenvectors());
}
}