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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 1999, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** ****************************************************************** */
00020                                                                         
00021 // $Revision: 1.1.1.1 $
00022 // $Date: 2000/09/15 08:23:27 $
00023 // $Source: /usr/local/cvs/OpenSees/SRC/system_of_eqn/SystemOfEqn.h,v $
00024                                                                         
00025                                                                         
00026 // File: ~/system_of_eqn/SystemOfEqn.h
00027 //
00028 // Written: fmk 
00029 // Created: 11/96
00030 // Revision: A
00031 //
00032 // Description: This file contains the class definition for SystemOfEqn.
00033 // SystemOfEqn is an abstract base class and thus no objects of it's type
00034 // can be instantiated. It has pure virtual functions which must be
00035 // implemented in it's derived classes. 
00036 //
00037 // What: "@(#) SystemOfEqn.h, revA"
00038 
00039 #ifndef SystemOfEqn_h
00040 #define SystemOfEqn_h
00041 
00042 #include <MovableObject.h>
00043 #include <stdlib.h>
00044 
00045 #include <Graph.h>
00046 #include <AnalysisModel.h>
00047 #include <FEM_ObjectBroker.h>
00048 
00059 class SystemOfEqn : public MovableObject
00060 {
00061   public:
00066     SystemOfEqn(int classTag);    
00067 
00071     virtual ~SystemOfEqn();
00072 
00073 
00083     virtual int solve(void) = 0;
00084 
00085 
00086   protected:
00087     
00088   private:
00089 
00090 };
00091 
00092 #endif
00093 
00094