tgotosv.cpp

/*************************************************************************************
 * MechSys - A C++ library to simulate (Continuum) Mechanical Systems                *
 * Copyright (C) 2005 Dorival de Moraes Pedroso <dorival.pedroso at gmail.com>       *
 * Copyright (C) 2005 Raul Dario Durand Farfan  <raul.durand at gmail.com>           *
 *                                                                                   *
 * This file is part of MechSys.                                                     *
 *                                                                                   *
 * MechSys is free software; you can redistribute it and/or modify it under the      *
 * terms of the GNU General Public License as published by the Free Software         *
 * Foundation; either version 2 of the License, or (at your option) any later        *
 * version.                                                                          *
 *                                                                                   *
 * MechSys 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 General Public License for more details.          *
 *                                                                                   *
 * You should have received a copy of the GNU General Public License along with      *
 * MechSys; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, *
 * Fifth Floor, Boston, MA 02110-1301, USA                                           *
 *************************************************************************************/

#define _NMBFMT std::setw(12) <<

#include <iostream>
#include <cmath>
#include <iomanip>

#include "linalg/lawrap.h"
#include "linalg/matrix.h"
#include "linalg/vector.h"

using namespace std;
using namespace LinAlg;

int main()
{
    // ================================================================= Linear Solver

    cout << "\n============================================== Linear Solver\n";

    Matrix<REAL> A(5,5,"3 1 3 1 8   1 5 9 -2 4   2 6 5 0 -7   1 2 2 3 1   1 2 3 1 -1");
    Vector<REAL> Y(5,"-1 -1  1 0 2");

    cout << "A = \n" << A << endl;
    cout << "Y = \n" << Y << endl;
    
    if (Gesv(A,Y)==0)
    {
        cout << "Y := inv(A)*Y\n" << Y << endl;
        cout << "matrix A after solver = \n" << A << endl;
    }
    else
        cout << "ERROR: Impossible to solve [A]{X} = {Y} !\n";

    return 0;
}

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