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numconsts.hh
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2 // $Id: numconsts.hh 2577 2011-09-13 15:11:38Z salam $
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28 
29 
30 
31 #ifndef __FASTJET_NUMCONSTS__
32 #define __FASTJET_NUMCONSTS__
33 
34 #include "fastjet/internal/base.hh"
35 
36 FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
37 
38 // some common useful constants!
39 
40 const double pi = 3.141592653589793238462643383279502884197;
41 const double twopi = 6.283185307179586476925286766559005768394;
42 const double pisq = 9.869604401089358618834490999876151135314;
43 const double zeta2 = 1.644934066848226436472415166646025189219;
44 const double zeta3 = 1.202056903159594285399738161511449990765;
45 const double eulergamma = 0.577215664901532860606512090082402431042;
46 const double ln2 = 0.693147180559945309417232121458176568076;
47 
48 
49 FASTJET_END_NAMESPACE
50 
51 #endif // __FASTJET_NUMCONSTS__