precond.h

一个用来实现偏微分方程中网格的计算库

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/*                                precond.h                                 */
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/*                                                                          */
/* PRECONDitioners for iterative solvers of systems of linear equations     */
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/* Copyright (C) 1992-1996 Tomas Skalicky. All rights reserved.             */
/*                                                                          */
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/*        ANY USE OF THIS CODE CONSTITUTES ACCEPTANCE OF THE TERMS          */
/*              OF THE COPYRIGHT NOTICE (SEE FILE COPYRGHT.H)               */
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/****************************************************************************/

#ifndef PRECOND_H
#define PRECOND_H

#include "laspack_config.h"
#ifdef _LP_INCLUDED_FROM_CPLUSPLUS
extern "C" {
#endif

  
#include "lastypes.h"
#include "qvector.h"
#include "qmatrix.h"
#include "copyrght.h"

typedef QVector *(*PrecondProcType)(QMatrix *, QVector *, QVector *, _LPDouble);

/* declaration of preconditioners */

QVector *JacobiPrecond(QMatrix *A, QVector *y, QVector *c, _LPDouble Omega);
QVector *SSORPrecond(QMatrix *A, QVector *y, QVector *c, _LPDouble Omega);
QVector *ILUPrecond(QMatrix *A, QVector *y, QVector *c, _LPDouble Omega);

#ifdef _LP_INCLUDED_FROM_CPLUSPLUS
}
#endif

#endif /* PRECOND_H */