constants.h

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// -*- Mode: C++; tab-width: 2; -*-
// vi: set ts=2:
//

#ifndef BALL_COMMON_CONSTANTS_H
#define BALL_COMMON_CONSTANTS_H

#ifndef BALL_COMMON_GLOBAL_H
# include <BALL/COMMON/global.h>
#endif

namespace BALL 
{

  namespace Constants 
  {

    BALL_EXTERN_VARIABLE const double  PI;

    BALL_EXTERN_VARIABLE const double  E;

    BALL_EXTERN_VARIABLE double EPSILON;
      
    
    BALL_EXTERN_VARIABLE const double ELEMENTARY_CHARGE; // C
  
    BALL_EXTERN_VARIABLE const double e0;

    BALL_EXTERN_VARIABLE const double ELECTRON_MASS;   // kg

    BALL_EXTERN_VARIABLE const double PROTON_MASS;   // kg

    BALL_EXTERN_VARIABLE const double NEUTRON_MASS;  // kg

    BALL_EXTERN_VARIABLE const double AVOGADRO;

    BALL_EXTERN_VARIABLE const double NA;

    BALL_EXTERN_VARIABLE const double MOL;

    BALL_EXTERN_VARIABLE const double BOLTZMANN;

    BALL_EXTERN_VARIABLE const double k;
    
    BALL_EXTERN_VARIABLE const double PLANCK;

    BALL_EXTERN_VARIABLE const double h;

    BALL_EXTERN_VARIABLE const double GAS_CONSTANT;

    BALL_EXTERN_VARIABLE const double R;

    BALL_EXTERN_VARIABLE const double FARADAY;

    BALL_EXTERN_VARIABLE const double F;

    BALL_EXTERN_VARIABLE const double BOHR_RADIUS;

    BALL_EXTERN_VARIABLE const double a0;

    //  the following values from: 
    //  P.W.Atkins: Physical Chemistry, 5th ed., Oxford University Press, 1995

    BALL_EXTERN_VARIABLE const double VACUUM_PERMITTIVITY;

    BALL_EXTERN_VARIABLE const double VACUUM_PERMEABILITY;

    BALL_EXTERN_VARIABLE const double SPEED_OF_LIGHT;

    BALL_EXTERN_VARIABLE const double c;

    BALL_EXTERN_VARIABLE const double GRAVITATIONAL_CONSTANT;

    BALL_EXTERN_VARIABLE const double FINE_STRUCTURE_CONSTANT;

      
    BALL_EXTERN_VARIABLE const double DEG_PER_RAD;

    BALL_EXTERN_VARIABLE const double RAD_PER_DEG;

    BALL_EXTERN_VARIABLE const double MM_PER_INCH;

    BALL_EXTERN_VARIABLE const double M_PER_FOOT;

    BALL_EXTERN_VARIABLE const double JOULE_PER_CAL;

    BALL_EXTERN_VARIABLE const double CAL_PER_JOULE;

  }
}

#endif // BALL_COMMON_CONSTANTS_H