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 "DiagonalMatrix.H"
29 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
33 Foam::DiagonalMatrix<Type>::DiagonalMatrix(const Matrix<Form, Type>& a)
35 List<Type>(min(a.n(), a.m()))
39 this->operator[](i) = a[i][i];
45 Foam::DiagonalMatrix<Type>::DiagonalMatrix(const label size)
52 Foam::DiagonalMatrix<Type>::DiagonalMatrix(const label size, const Type& val)
59 Foam::DiagonalMatrix<Type>& Foam::DiagonalMatrix<Type>::invert()
63 Type x = this->operator[](i);
66 this->operator[](i) = Type(0);
70 this->operator[](i) = Type(1)/x;
79 Foam::DiagonalMatrix<Type> Foam::inv(const DiagonalMatrix<Type>& A)
81 DiagonalMatrix<Type> Ainv = A;
100 // ************************************************************************* //