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solver.h
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			/*
			_________________________________________________________________________
			* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
			* DESCRIPTION: SEE READ-ME *
			* FILE NAME: solver.h *
			* AUTHORS: See Author List *
			* GRANTS: See Grants List *
			* COPYRIGHT: (C) 2005 by Authors as listed in Author's List *
			* LICENSE: Please see License Agreement *
			* DOWNLOAD: Free at www.rpi.edu/~anderk5 *
			* ADMINISTRATOR: Prof. Kurt Anderson *
			* Computational Dynamics Lab *
			* Rensselaer Polytechnic Institute *
			* 110 8th St. Troy NY 12180 *
			* CONTACT: anderk5@rpi.edu *
			_________________________________________________________________________/

			#ifndef SOLVER_H
			#define SOLVER_H
			#include <fstream>
			#include "colmatmap.h"
			#include "matrices.h"
			#include "defines.h"

			class System;

			class Solver{
			protected:
			System* system;


			double time;
			ColMatMap state;
			ColMatMap statedot;
			ColMatMap statedoubledot;

			SolverType type;

			virtual void ComputeForces();

			public:
			Solver();
			virtual ~Solver();
			void SetSystem(System* s);
			SolverType GetSolverType();
			static Solver * GetSolver(SolverType solverToMake);

			virtual void DeleteModel() = 0;
			virtual void CreateModel() = 0;
			virtual void Solve(double time, Matrix& FF) = 0;



			ColMatMap* GetState();
			ColMatMap* GetStateDerivative();
			ColMatMap* GetStateDerivativeDerivative();
			};

			#endif