| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2026 OpenFOAM Foundation | |
| \\/ M anipulation | | |
| ------------------------------------------------------------------------------- | |
| License | |
| This file is part of OpenFOAM. | |
| OpenFOAM is free software: you can redistribute it and/or modify it | |
| under the terms of the GNU General Public License as published by | |
| the Free Software Foundation, either version 3 of the License, or | |
| (at your option) any later version. | |
| OpenFOAM is distributed in the hope that it will be useful, but WITHOUT | |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| for more details. | |
| You should have received a copy of the GNU General Public License | |
| along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. | |
| Class | |
| Foam::FixedPolynomial | |
| Description | |
| Fixed-size polynomial. Evaluation is done using Horner's method to minimise | |
| the number of operations. | |
| SourceFiles | |
| FixedPolynomial.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class FixedPolynomial Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| template<class T, uint8_t PN> | |
| class FixedPolynomial | |
| : | |
| public VectorSpace<FixedPolynomial<T, PN>, T, PN> | |
| { | |
| public: | |
| // Constructors | |
| //- Default construct | |
| FixedPolynomial(); | |
| //- Construct zero | |
| FixedPolynomial(const zero); | |
| //- Construct from C-array of coefficients | |
| FixedPolynomial(const T (&coeffs)[PN]); | |
| //- Construct from a list of coefficients | |
| FixedPolynomial(const UList<T>& coeffs); | |
| //- Construct from a stream | |
| FixedPolynomial(Istream& is); | |
| //- Construct from a dictionary | |
| FixedPolynomial | |
| ( | |
| const char* symbols, | |
| const Function1s::unitSets& units, | |
| const dictionary& dict | |
| ); | |
| // Member Functions | |
| //- Return the value at a coordinate | |
| T value(const scalar x) const; | |
| //- Return the value of the derivative at a coordinate | |
| T derivative(const scalar x) const; | |
| //- Return the value of the (indefinite) integral at a coordinate | |
| T integral(const scalar x) const; | |
| //- Return the value of the (definite) integral between coordinates | |
| T integral(const scalar x0, const scalar x1) const; | |
| //- Return the polynomial of the (definite) integral from a coordinate | |
| FixedPolynomial<T, PN + 1> integralPolynomial(const scalar x) const; | |
| //- Return info proxy | |
| inline InfoProxy<FixedPolynomial<T, PN>> info() const | |
| { | |
| return *this; | |
| } | |
| //- Write to stream | |
| void write | |
| ( | |
| const char* symbols, | |
| const Function1s::unitSets& units, | |
| Ostream& os | |
| ) const; | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| //- Convert to standard units after reading | |
| template<class T, uint8_t PN> | |
| void convert | |
| ( | |
| FixedPolynomial<T, PN>& poly, | |
| const Function1s::unitSets& units, | |
| const unitSet::makeStandardOp& | |
| ); | |
| //- Convert to user units before writing | |
| template<class T, uint8_t PN> | |
| void convert | |
| ( | |
| FixedPolynomial<T, PN>& poly, | |
| const Function1s::unitSets& units, | |
| const unitSet::makeUserOp& | |
| ); | |
| //- Write info to stream | |
| template<class T, uint8_t PN> | |
| Ostream& operator<< | |
| ( | |
| Ostream&, | |
| const InfoProxy<FixedPolynomial<T, PN>>& | |
| ); | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |