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da0e9ce3 | 1 | //-------------------------------------------------------------------------- |
2 | // | |
3 | // Environment: | |
4 | // This software is part of the EvtGen package developed jointly | |
5 | // for the BaBar and CLEO collaborations. If you use all or part | |
6 | // of it, please give an appropriate acknowledgement. | |
7 | // | |
8 | // Copyright Information: See EvtGen/COPYRIGHT | |
9 | // Copyright (C) 1998 Caltech, UCSB | |
10 | // | |
11 | // Module: EvtComplex.cc | |
12 | // | |
13 | // Description: EvtComlex.cc | |
14 | // | |
15 | // Modification history: | |
16 | // | |
17 | // RYD December 5, 1998 Created | |
18 | // | |
19 | //------------------------------------------------------------------------ | |
20 | // | |
21 | #include "EvtGenBase/EvtPatches.hh" | |
22 | #include <iostream> | |
23 | #include <math.h> | |
24 | #include "EvtGenBase/EvtComplex.hh" | |
25 | using std::ostream; | |
26 | ||
27 | ||
28 | ostream& operator<<(ostream& s, const EvtComplex& c){ | |
29 | ||
30 | s<<"("<<c._rpart<<","<<c._ipart<<")"; | |
31 | return s; | |
32 | ||
33 | } | |
34 | ||
35 | EvtComplex& EvtComplex::operator*=(EvtComplex c){ | |
36 | ||
37 | double r=_rpart*c._rpart-_ipart*c._ipart; | |
38 | double i=_rpart*c._ipart+_ipart*c._rpart; | |
39 | ||
40 | _rpart=r; | |
41 | _ipart=i; | |
42 | ||
43 | return *this; | |
44 | ||
45 | } | |
46 | ||
47 | EvtComplex& EvtComplex::operator/=(EvtComplex c){ | |
48 | ||
49 | double inv=1.0/(c._rpart*c._rpart+c._ipart*c._ipart); | |
50 | ||
51 | double r=inv*(_rpart*c._rpart+_ipart*c._ipart); | |
52 | double i=inv*(_rpart*c._ipart-_ipart*c._rpart); | |
53 | ||
54 | _rpart=r; | |
55 | _ipart=i; | |
56 | ||
57 | return *this; | |
58 | ||
59 | } | |
60 | ||
61 | ||
62 | ||
63 |