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// This file is part of ff3d - http://www.freefem.org/ff3d
// Copyright (C) 2001, 2002, 2003 Stphane Del Pino
// 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, 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: VariationalOperatorAlphaUV.hpp,v 1.3 2004/07/11 22:37:06 delpinux Exp $
#ifndef VARIATIONAL_OPERATOR_ALPHA_U_V_HPP
#define VARIATIONAL_OPERATOR_ALPHA_U_V_HPP
#include <VariationalBilinearOperator.hpp>
#include <UserFunction.hpp>
class VariationalAlphaUVOperator
: public VariationalBilinearOperator
{
private:
ReferenceCounting<UserFunction> __Alpha; /**< Mass term \f$\alpha\f$ */
public:
/**
* Access to \f$\alpha\f$
*
* @return *__Alpha
*/
const UserFunction& alpha() const
{
return *__Alpha;
}
/**
* "Multiplies" the operator by a function
*
* @param u the given function
*
* @return the new operator
*/
ReferenceCounting<VariationalBilinearOperator>
operator * (ConstReferenceCounting<UserFunction> u) const
{
VariationalAlphaUVOperator* newOperator = new VariationalAlphaUVOperator(*this);
(*newOperator).__Alpha = new MulUserFunction(__Alpha, u);
return newOperator;
}
/**
* Constructor
*
* @param unknownNumber
* @param testFunctionNumber
* @param alpha
*
* @return
*/
VariationalAlphaUVOperator(const size_t unknownNumber,
const size_t testFunctionNumber,
ReferenceCounting<UserFunction> alpha)
: VariationalBilinearOperator(VariationalBilinearOperator::alphaUV,
unknownNumber, testFunctionNumber),
__Alpha(alpha)
{
;
}
/**
* Copy constructor
*
* @param V
*
*/
VariationalAlphaUVOperator(const VariationalAlphaUVOperator& V)
: VariationalBilinearOperator(V),
__Alpha(V.__Alpha)
{
;
}
/**
*
* Destructor
*
*/
~VariationalAlphaUVOperator()
{
;
}
};
#endif // VARIATIONAL_OPERATOR_ALPHA_U_V_HPP
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