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/* | 
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 * Copyright (C) 2000-2004  Object Oriented Parallel Simulation Engine (OOPSE) project | 
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 *  | 
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 * Contact: oopse@oopse.org | 
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 *  | 
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 * This program is free software; you can redistribute it and/or | 
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 * modify it under the terms of the GNU Lesser General Public License | 
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 * as published by the Free Software Foundation; either version 2.1 | 
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 * of the License, or (at your option) any later version. | 
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 * All we ask is that proper credit is given for our work, which includes | 
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 * - but is not limited to - adding the above copyright notice to the beginning | 
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 * of your source code files, and to any copyright notice that you may distribute | 
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 * with programs based on this work. | 
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 *  | 
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 * This program 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 this program; if not, write to the Free Software | 
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. | 
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 /* | 
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 * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved. | 
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 * | 
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 * The University of Notre Dame grants you ("Licensee") a | 
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 * non-exclusive, royalty free, license to use, modify and | 
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 * redistribute this software in source and binary code form, provided | 
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 * that the following conditions are met: | 
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 * | 
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 * 1. Acknowledgement of the program authors must be made in any | 
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 *    publication of scientific results based in part on use of the | 
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 *    program.  An acceptable form of acknowledgement is citation of | 
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 *    the article in which the program was described (Matthew | 
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 *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher | 
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 *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented | 
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 *    Parallel Simulation Engine for Molecular Dynamics," | 
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 *    J. Comput. Chem. 26, pp. 252-271 (2005)) | 
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 * | 
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 * 2. Redistributions of source code must retain the above copyright | 
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 *    notice, this list of conditions and the following disclaimer. | 
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 * | 
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 * 3. Redistributions in binary form must reproduce the above copyright | 
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 *    notice, this list of conditions and the following disclaimer in the | 
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 *    documentation and/or other materials provided with the | 
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 *    distribution. | 
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 * | 
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 * This software is provided "AS IS," without a warranty of any | 
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 * kind. All express or implied conditions, representations and | 
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 * warranties, including any implied warranty of merchantability, | 
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 * fitness for a particular purpose or non-infringement, are hereby | 
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 * excluded.  The University of Notre Dame and its licensors shall not | 
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 * be liable for any damages suffered by licensee as a result of | 
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 * using, modifying or distributing the software or its | 
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 * derivatives. In no event will the University of Notre Dame or its | 
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 * licensors be liable for any lost revenue, profit or data, or for | 
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 * direct, indirect, special, consequential, incidental or punitive | 
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 * damages, however caused and regardless of the theory of liability, | 
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 * arising out of the use of or inability to use software, even if the | 
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 * University of Notre Dame has been advised of the possibility of | 
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 * such damages. | 
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 */ | 
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  | 
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/** | 
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 * @file Vector.hpp | 
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 * @author Teng Lin | 
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 | 
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namespace oopse { | 
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 | 
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    const double epsilon = 0.000001; | 
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    static const double epsilon = 0.000001; | 
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 | 
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    template<typename T> | 
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    inline bool equal(T e1, T e2) { | 
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            /** default constructor */ | 
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            inline Vector(){ | 
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                for (unsigned int i = 0; i < Dim; i++) | 
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                    data_[i] = 0.0; | 
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                    data_[i] = 0; | 
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            } | 
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 | 
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            /** Constructs and initializes a Vector from a vector */ | 
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            inline  const Real& operator()(unsigned int i) const { | 
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                assert( i < Dim); | 
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                return data_[i]; | 
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            } | 
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 | 
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            /** Copy the internal data to an array*/ | 
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            void getArray(Real* array) { | 
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                for (unsigned int i = 0; i < Dim; i ++) { | 
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                    array[i] = data_[i]; | 
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                }                 | 
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            } | 
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 | 
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            /** Returns the pointer of internal array */ |