/**
 * @file pde.h
 * @brief Solving Partial Differential Equations
 *
 * Full Multigrid Algorithm and Successive Overrelaxation.
 *
 * @author Grzegorz Krawczyk
 *
 * This file is a part of Qtpfsgui package, based on pfstmo.
 * ----------------------------------------------------------------------
 * Copyright (C) 2003,2004 Grzegorz Krawczyk
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * ----------------------------------------------------------------------
 *
 * $Id: pde.h,v 1.2 2008/09/04 12:46:49 julians37 Exp $
 */

#ifndef _FMG_PDE_H_
#define _FMG_PDE_H_

#include "../pfstmo.h"

/// limit of iterations for successive overrelaxation
#define SOR_MAXITS 5001

/**
 * @brief solve pde using full multrigrid algorithm
 *
 * @param F array with divergence
 * @param U [out] sollution
 */
void solve_pde_multigrid(pfstmo::Array2D *F, pfstmo::Array2D *U);

/**
 * @brief solve pde using successive overrelaxation
 *
 * @param F array with divergence
 * @param U [out] sollution
 * @param maxits limit of iterations
 */
void solve_pde_sor(pfstmo::Array2D *F, pfstmo::Array2D *U, int maxits=SOR_MAXITS);

#endif

