source: downloads/ogre_src_v1-9-0/OgreMain/include/OgreNumerics.h

/*
-----------------------------------------------------------------------------
This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2013 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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THE SOFTWARE.
-----------------------------------------------------------------------------
*/

#ifndef __NumericSolvers_H__
#define __NumericSolvers_H__

#include "OgrePrerequisites.h"


namespace Ogre {

        /** \addtogroup Core
        *  @{
        */
        /** \addtogroup Math
        *  @{
        */
        /** Real type for numeric solvers */
        typedef double PreciseReal;


    /** Provides numeric solvers for Ogre
        @remarks
            Handles linear algebra numerics.
    */
        class _OgreExport NumericSolver
        {
        public:
                /** Solves a full rank NxN linear system of equations 
                    @remarks
                           This implements a naive Gaussian elimination algorithm.
                           The algorithm is destructive, so there are side effects in coeff and col.
            */
                static bool solveNxNLinearSysDestr(int n, PreciseReal **coeff, PreciseReal *col);
        };
        /** @} */
        /** @} */

}

#endif