47 lines
2.1 KiB
C
47 lines
2.1 KiB
C
/****************************************************************************
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* Copyright (C) 2009 Daniel Chappuis *
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****************************************************************************
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* This file is part of ReactPhysics3D. *
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* *
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* ReactPhysics3D is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License as published *
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* by the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* ReactPhysics3D is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with ReactPhysics3D. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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// TODO : Mathematics library : Check everywhere that in member methods we use attributes access instead of getter and setter.
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#ifndef MATHEMATICS_H
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#define MATHEMATICS_H
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// Libraries
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#include "Matrix.h"
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#include "Matrix3x3.h"
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#include "Polygon3D.h"
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#include "Quaternion.h"
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#include "Segment3D.h"
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#include "Vector.h"
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#include "Vector3D.h"
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#include "constants.h"
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#include "exceptions.h"
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#include <cstdio>
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// ---------- Mathematics functions ---------- //
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// Method to test if two numbers are (almost) equal
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// We test if two numbers a and b are such that (a-b) are in [-EPSILON; EPSILON]
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inline bool equal(double a, double b) {
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double difference = a - b;
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return (difference < EPSILON && difference > -EPSILON);
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}
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#endif
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