1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright held by original author
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
11 OpenFOAM is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2 of the License, or (at your
14 option) any later version.
16 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 You should have received a copy of the GNU General Public License
22 along with OpenFOAM; if not, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 \*---------------------------------------------------------------------------*/
27 #include "polynomial.H"
29 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
33 defineTypeNameAndDebug(polynomial, 0);
36 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
38 Foam::polynomial::polynomial(const word& entryName, Istream& is)
40 DataEntry<scalar>(entryName),
45 FatalErrorIn("Foam::polynomial::polynomial(const word&, Istream&)")
46 << "polynomial coefficients for entry " << this->name_
47 << " is invalid (empty)" << nl << exit(FatalError);
52 Foam::polynomial::polynomial(const polynomial& poly)
54 DataEntry<scalar>(poly),
59 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
61 Foam::polynomial::~polynomial()
65 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
67 Foam::scalar Foam::polynomial::value(const scalar x) const
72 y += coeffs_[i].first()*pow(x, coeffs_[i].second());
79 Foam::scalar Foam::polynomial::integrate(const scalar x1, const scalar x2) const
86 coeffs_[i].first()/(coeffs_[i].second() + 1)
88 pow(x2, coeffs_[i].second() + 1)
89 - pow(x1, coeffs_[i].second() + 1)
97 // ************************************************************************* //