MathHeader.hh

#ifndef RIVET_Math_MathHeader
#define RIVET_Math_MathHeader

#include "Rivet/Tools/Exceptions.hh"
#include "Rivet/Tools/Utils.hh"

namespace Rivet {


  static const double MAXDOUBLE = DBL_MAX; // was std::numeric_limits<double>::max(); -- warns in GCC5
  static const double MAXINT = INT_MAX; // was std::numeric_limits<int>::max(); -- warns in GCC5

  static const double PI = M_PI;

  static const double TWOPI = 2*M_PI;

  static const double HALFPI = M_PI_2;

  enum Sign { MINUS = -1, ZERO = 0, PLUS = 1 };

  enum RapScheme { PSEUDORAPIDITY = 0, ETARAP = 0, RAPIDITY = 1, YRAP = 1 };

  enum PhiMapping { MINUSPI_PLUSPI, ZERO_2PI, ZERO_PI };

}

#endif