REST-for-Physics  v2.3
Rare Event Searches ToolKit for Physics
TRestComplex.cxx
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22
66
67#include "TRestComplex.h"
68
69#include <iostream>
70#include <sstream>
71
72ClassImp(TRestComplex);
73
76
77TRestComplex::TRestComplex(mpfr::mpreal re, mpfr::mpreal im, Bool_t polar) : fRe(re), fIm(im) {
78 if (polar) {
79 if (re < 0) {
80 re = -re;
81 }
82 fRe = re * mpfr::cos(im);
83 fIm = re * mpfr::sin(im);
84 }
85}
86
88
89std::ostream& operator<<(std::ostream& out, const TRestComplex& c) {
90 int pr = out.precision();
91
92 int realExponent = (int)mpfr::abs(mpfr::log(mpfr::abs(c.fRe)) / mpfr::log(10));
93 int complexExponent = (int)mpfr::abs(mpfr::log(mpfr::abs(c.fIm)) / mpfr::log(10));
94
95 out.precision(mpfr::bits2digits(mpfr::mpreal::get_default_prec()) - realExponent);
96 out << "(" << c.fRe;
97 out.precision(mpfr::bits2digits(mpfr::mpreal::get_default_prec()) - complexExponent);
98 out << "," << c.fIm << "i)";
99 out.precision(pr);
100 return out;
101}
102
104
105std::istream& operator>>(std::istream& in, TRestComplex& c) {
106 in >> c.fRe >> c.fIm;
107 return in;
108}
109
110namespace cling {
111std::string printValue(TRestComplex* c) {
112 std::stringstream s;
113 s << *c;
114 return s.str();
115}
116} // namespace cling
A generic class to handle complex numbers with real precision.
Definition: TRestComplex.h:33
mpfr::mpreal fIm
The imaginary part of the complex number using MPFR precision.
Definition: TRestComplex.h:38
mpfr::mpreal fRe
The real part of the complex number using MPFR precision.
Definition: TRestComplex.h:36