| Geant4 Cross Reference |
1 // -*- C++ -*- 1
2 //
3 // -------------------------------------------
4 // HEP Random
5 // --- RandExponential -
6 // inlined functions implement
7 // -------------------------------------------
8 // This file is part of Geant4 (simulation too
9
10 // ===========================================
11 // Gabriele Cosmo - Created: 19th August 1998
12 // ===========================================
13
14 #include <cmath> // for log()
15
16 namespace CLHEP {
17
18 inline RandExponential::RandExponential(HepRan
19 double
20 : HepRandom(), localEngine(&anEngine, do_nothi
21
22 inline RandExponential::RandExponential(HepRan
23 double
24 : HepRandom(), localEngine(anEngine), defaultM
25
26 //-------------
27
28 inline double RandExponential::shoot(HepRandom
29 return -std::log(anEngine->flat());
30 }
31
32 inline double RandExponential::shoot(HepRandom
33 double
34 return -std::log(anEngine->flat())*mean;
35 }
36
37 //-------------
38
39 inline double RandExponential::fire() {
40 return -std::log(localEngine->flat())*defaul
41 }
42
43 inline double RandExponential::fire(double mea
44 return -std::log(localEngine->flat())*mean;
45 }
46
47 } // namespace CLHEP
48