CRNEquationSolver.h

Go to the documentation of this file.

/* Copyright 2008-2014 INSA Lyon
 * 
 * This file is part of libcrn.
 * 
 * libcrn 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 3 of the License, or
 * (at your option) any later version.
 * 
 * libcrn 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 libcrn.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * file: CRNEquationSolver.h
 * 
 * \author Jean DUONG
 */


#ifndef CRNEQUATIONSOLVER_HEADER
#define CRNEQUATIONSOLVER_HEADER

#include <CRN.h>
#include <set>

namespace crn
{
    class MatrixDouble;
    class SquareMatrixDouble;

    /****************************************************************************/
    namespace LinearSystem
    {   
        MatrixDouble Cramer(const SquareMatrixDouble &Coefficients, const MatrixDouble &ConstantTerms);
        MatrixDouble GaussJordan(const SquareMatrixDouble &Coefficients, const MatrixDouble &ConstantTerms);
    }

    /****************************************************************************/
    namespace QuadraticEquation
    {
        double Discriminant(double a, double b, double c) noexcept;
        std::set<double> RealRoots(double a, double b, double c) noexcept;
    }
}
#endif