| [35cdc46] | 1 | //FJSTARTHEADER
|
|---|
| [cb80e6f] | 2 | // $Id: numconsts.hh 4442 2020-05-05 07:50:11Z soyez $
|
|---|
| [d7d2da3] | 3 | //
|
|---|
| [cb80e6f] | 4 | // Copyright (c) 2005-2020, Matteo Cacciari, Gavin P. Salam and Gregory Soyez
|
|---|
| [d7d2da3] | 5 | //
|
|---|
| 6 | //----------------------------------------------------------------------
|
|---|
| 7 | // This file is part of FastJet.
|
|---|
| 8 | //
|
|---|
| 9 | // FastJet is free software; you can redistribute it and/or modify
|
|---|
| 10 | // it under the terms of the GNU General Public License as published by
|
|---|
| 11 | // the Free Software Foundation; either version 2 of the License, or
|
|---|
| 12 | // (at your option) any later version.
|
|---|
| 13 | //
|
|---|
| 14 | // The algorithms that underlie FastJet have required considerable
|
|---|
| [35cdc46] | 15 | // development. They are described in the original FastJet paper,
|
|---|
| 16 | // hep-ph/0512210 and in the manual, arXiv:1111.6097. If you use
|
|---|
| [d7d2da3] | 17 | // FastJet as part of work towards a scientific publication, please
|
|---|
| [35cdc46] | 18 | // quote the version you use and include a citation to the manual and
|
|---|
| 19 | // optionally also to hep-ph/0512210.
|
|---|
| [d7d2da3] | 20 | //
|
|---|
| 21 | // FastJet is distributed in the hope that it will be useful,
|
|---|
| 22 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 23 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 24 | // GNU General Public License for more details.
|
|---|
| 25 | //
|
|---|
| 26 | // You should have received a copy of the GNU General Public License
|
|---|
| 27 | // along with FastJet. If not, see <http://www.gnu.org/licenses/>.
|
|---|
| 28 | //----------------------------------------------------------------------
|
|---|
| [35cdc46] | 29 | //FJENDHEADER
|
|---|
| [d7d2da3] | 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__
|
|---|
