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fastjet 2.4.5
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fastjet 2.4.5
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00001 //STARTHEADER 00002 // $Id: numconsts.hh 293 2006-08-17 19:38:38Z salam $ 00003 // 00004 // Copyright (c) 2005-2006, Matteo Cacciari and Gavin Salam 00005 // 00006 //---------------------------------------------------------------------- 00007 // This file is part of FastJet. 00008 // 00009 // FastJet is free software; you can redistribute it and/or modify 00010 // it under the terms of the GNU General Public License as published by 00011 // the Free Software Foundation; either version 2 of the License, or 00012 // (at your option) any later version. 00013 // 00014 // The algorithms that underlie FastJet have required considerable 00015 // development and are described in hep-ph/0512210. If you use 00016 // FastJet as part of work towards a scientific publication, please 00017 // include a citation to the FastJet paper. 00018 // 00019 // FastJet is distributed in the hope that it will be useful, 00020 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00021 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00022 // GNU General Public License for more details. 00023 // 00024 // You should have received a copy of the GNU General Public License 00025 // along with FastJet; if not, write to the Free Software 00026 // Foundation, Inc.: 00027 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00028 //---------------------------------------------------------------------- 00029 //ENDHEADER 00030 00031 00032 00033 #ifndef __FASTJET_NUMCONSTS__ 00034 #define __FASTJET_NUMCONSTS__ 00035 00036 #include "fastjet/internal/base.hh" 00037 00038 FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh 00039 00040 // some common useful constants! 00041 00042 const double pi = 3.141592653589793238462643383279502884197; 00043 const double twopi = 6.283185307179586476925286766559005768394; 00044 const double pisq = 9.869604401089358618834490999876151135314; 00045 const double zeta2 = 1.644934066848226436472415166646025189219; 00046 const double zeta3 = 1.202056903159594285399738161511449990765; 00047 const double eulergamma = 0.577215664901532860606512090082402431042; 00048 const double ln2 = 0.693147180559945309417232121458176568076; 00049 00050 00051 FASTJET_END_NAMESPACE 00052 00053 #endif // __FASTJET_NUMCONSTS__
1.7.4
