QuantLib
: a free/open-source library for quantitative finance
fully annotated source code - version 1.34
Loading...
Searching...
No Matches
ql
math
integrals
exponentialintegrals.hpp
Go to the documentation of this file.
1
/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3
/*
4
Copyright (C) 2020 Klaus Spanderen
5
6
This file is part of QuantLib, a free-software/open-source library
7
for financial quantitative analysts and developers - http://quantlib.org/
8
9
QuantLib is free software: you can redistribute it and/or modify it
10
under the terms of the QuantLib license. You should have received a
11
copy of the license along with this program; if not, please email
12
<quantlib-dev@lists.sf.net>. The license is also available online at
13
<http://quantlib.org/license.shtml>.
14
15
This program is distributed in the hope that it will be useful, but WITHOUT
16
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17
FOR A PARTICULAR PURPOSE. See the license for more details.
18
*/
19
20
/*! \file exponentialintegrals.hpp
21
*/
22
23
#ifndef quantlib_exponentail_integral_hpp
24
#define quantlib_exponentail_integral_hpp
25
26
#include <
ql/types.hpp
>
27
#include <complex>
28
29
#ifndef M_EULER_MASCHERONI
30
#define M_EULER_MASCHERONI 0.5772156649015328606065121
31
#endif
32
33
namespace
QuantLib
{
34
/*! References:
35
36
B. Rowe et al: GALSIM: The modular galaxy image simulation toolkit
37
https://arxiv.org/abs/1407.7676
38
39
V. Pegoraro, P. Slusallek:
40
On the Evaluation of the Complex-Valued Exponential Integral
41
https://www.sci.utah.edu/~vpegorar/research/2011_JGT.pdf
42
43
*/
44
45
namespace
ExponentialIntegral {
46
Real
Si
(
Real
x);
47
Real
Ci
(
Real
x);
48
49
std::complex<Real>
Ci
(
const
std::complex<Real>& z);
50
std::complex<Real>
Si
(
const
std::complex<Real>& z);
51
std::complex<Real>
E1
(
const
std::complex<Real>& z);
52
std::complex<Real>
Ei
(
const
std::complex<Real>& z);
53
}
54
}
55
56
#endif
QuantLib::Real
QL_REAL Real
real number
Definition:
types.hpp:50
QuantLib::ExponentialIntegral::Si
Real Si(Real x)
Definition:
exponentialintegrals.cpp:77
QuantLib::ExponentialIntegral::Ei
std::complex< Real > Ei(const std::complex< Real > &z, const std::complex< Real > &acc)
Definition:
exponentialintegrals.cpp:123
QuantLib::ExponentialIntegral::E1
std::complex< Real > E1(const std::complex< Real > &z)
Definition:
exponentialintegrals.cpp:205
QuantLib::ExponentialIntegral::Ci
Real Ci(Real x)
Definition:
exponentialintegrals.cpp:100
QuantLib
Definition:
any.hpp:35
types.hpp
Custom types.
Generated by
Doxygen
1.9.5