Kernel.h

#ifndef CP_KERNEL_H
#define CP_KERNEL_H
 
/*
* PSCF - Polymer Self-Consistent Field
*
* Copyright 2015 - 2025, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/
 
#include <util/param/ParamComposite.h>    // base class
 
namespace Pscf {
namespace Cp {
 
   using namespace Util;

   class Kernel : public ParamComposite
   {
 
   public:

      Kernel();

      virtual ~Kernel();
 
      // Modifiers

      virtual void readParameters(std::istream& in);
 
      // Accessors

      double range() const; 

      double f(double kSq) const;

      double g(double kSq) const;
 
   private:
 
      // Range of interaction
      double range_;
 
      // Constant prefactor used in calculation of g
      double cg_;
 
      // Constant prefactor used in calculation of f
      double cf_;
 
   };
 
   // Inline function
 
   inline double Kernel::range() const
   {  return range_; }
 
} // namespace Cp
} // namespace Pscf
#endif