QuantLib: a free/open-source library for quantitative finance
fully annotated source code - version 1.34
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fdmsimple2dbssolver.cpp
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1/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2
3/*
4 Copyright (C) 2009 Ralph Schreyer
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/*!
21 * \file fdmsimple2dbssolver.cpp
22*/
23
27#include <utility>
28
29namespace QuantLib {
30
32 Real strike,
33 FdmSolverDesc solverDesc,
34 const FdmSchemeDesc& schemeDesc)
35 : process_(std::move(process)), strike_(strike), solverDesc_(std::move(solverDesc)),
36 schemeDesc_(schemeDesc) {
37
39 }
40
42 ext::shared_ptr<FdmBlackScholesOp> op(ext::make_shared<FdmBlackScholesOp>(
43 solverDesc_.mesher, process_.currentLink(), strike_));
44
45 solver_ = ext::make_shared<Fdm2DimSolver>(solverDesc_, schemeDesc_, op);
46 }
47
49 calculate();
50 return solver_->interpolateAt(std::log(s), std::log(a));
51 }
52
54 return (valueAt(s+eps, a) - valueAt(s-eps, a))/(2*eps);
55 }
56
58 return (valueAt(s+eps, a)+valueAt(s-eps, a)-2*valueAt(s,a))/(eps*eps);
59 }
60
62 calculate();
63 return solver_->thetaAt(std::log(s), std::log(a));
64 }
65}
ext::shared_ptr< Fdm2DimSolver > solver_
void performCalculations() const override
FdmSimple2dBSSolver(Handle< GeneralizedBlackScholesProcess > process, Real strike, FdmSolverDesc desc, const FdmSchemeDesc &schemeDesc=FdmSchemeDesc::Douglas())
Real deltaAt(Real s, Real a, Real eps) const
Real thetaAt(Real s, Real a) const
Real gammaAt(Real s, Real a, Real eps) const
Real valueAt(Real s, Real a) const
Handle< GeneralizedBlackScholesProcess > process_
Shared handle to an observable.
Definition: handle.hpp:41
virtual void calculate() const
Definition: lazyobject.hpp:253
std::pair< iterator, bool > registerWith(const ext::shared_ptr< Observable > &)
Definition: observable.hpp:228
Black Scholes linear operator.
QL_REAL Real
real number
Definition: types.hpp:50
Definition: any.hpp:35
STL namespace.
const ext::shared_ptr< FdmMesher > mesher