MathFreeEnergy.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "DerivativeFunctionMaterialBase.h"
 
// Forward Declarations
 
class MathFreeEnergy : public DerivativeFunctionMaterialBase
{
public:
  static InputParameters validParams();
 
  MathFreeEnergy(const InputParameters & parameters);
 
protected:
  virtual Real computeF();
  virtual Real computeDF(unsigned int j_var);
  virtual Real computeD2F(unsigned int j_var, unsigned int k_var);
  virtual Real computeD3F(unsigned int j_var, unsigned int k_var, unsigned int l_var);
 
private:
  const VariableValue & _c;
  unsigned int _c_var;
};