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numconsts.hh
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2 // $Id: numconsts.hh 3433 2014-07-23 08:17:03Z salam $
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30 
31 
32 
33 #ifndef __FASTJET_NUMCONSTS__
34 #define __FASTJET_NUMCONSTS__
35 
36 #include "fastjet/internal/base.hh"
37 
38 FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
39 
40 // some common useful constants!
41 
42 const double pi = 3.141592653589793238462643383279502884197;
43 const double twopi = 6.283185307179586476925286766559005768394;
44 const double pisq = 9.869604401089358618834490999876151135314;
45 const double zeta2 = 1.644934066848226436472415166646025189219;
46 const double zeta3 = 1.202056903159594285399738161511449990765;
47 const double eulergamma = 0.577215664901532860606512090082402431042;
48 const double ln2 = 0.693147180559945309417232121458176568076;
49 
50 
51 FASTJET_END_NAMESPACE
52 
53 #endif // __FASTJET_NUMCONSTS__