/* * Expression Template Matrix Library * * Copyright (C) 2004 - 2006 Ricky Lung <mtlung@users.sourceforge.net> * * 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 * */ /* * Demonstrate how to find the inverse of a matrix * Currently only Cramer's rule is available */ #include <iostream> #include <iomanip> #include "../include/exmat.h" using namespace std; using namespace exmat; // Define some matrix types // A dense matrix of static size 3x3, with float as the element type typedef Mat<DenseMatCon<float, 3, 3> > Mat3x3f; int main() { Mat3x3f m1("0 1 3\n\ 2 2 5\n\ 3 1 2\n\ "); cout << "m1 =\n" << m1 << endl; // Inverse of a matrix using Cramer's rule Mat3x3f inv = adjoint(m1) / determinant(m1); cout << "inverse of m1 =\n" << inv << endl; cout << "m1 * (m1^-1) =\n" << inv * m1 << endl; return 0; }

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