             
                                                                              
             Copyright (C) 2008-2012 Alejandro A. Ortiz  
			 
			       www.cec.uchile.cl/~aortizb
				     aortizb@ing.uchile.cl

               Department of Mechanical Engineering                  
	         The University of Chile, Santiago, Chile                          
                                                                               
    This program 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.                                       
                                                                              
    This program 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 this program; if not, write to the Free Software               
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA or see           
    <http://www.gnu.org/licenses/>.  