00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd. 00006 \\/ M anipulation | 00007 ------------------------------------------------------------------------------- 00008 License 00009 This file is part of OpenFOAM. 00010 00011 OpenFOAM is free software: you can redistribute it and/or modify it 00012 under the terms of the GNU General Public License as published by 00013 the Free Software Foundation, either version 3 of the License, or 00014 (at your option) any later version. 00015 00016 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00018 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00019 for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. 00023 00024 \*---------------------------------------------------------------------------*/ 00025 00026 // * * * * * * * * * * * Private Member Functions * * * * * * * * * * * * * // 00027 00028 template<class T> 00029 inline const T Foam::SVD::sign(const T& a, const T& b) 00030 { 00031 return b >= 0 ? (a >= 0 ? a : -a) : (a >= 0 ? -a : a); 00032 } 00033 00034 00035 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * // 00036 00037 inline const Foam::scalarRectangularMatrix& Foam::SVD::U() const 00038 { 00039 return U_; 00040 } 00041 00042 inline const Foam::scalarRectangularMatrix& Foam::SVD::V() const 00043 { 00044 return V_; 00045 } 00046 00047 inline const Foam::scalarDiagonalMatrix& Foam::SVD::S() const 00048 { 00049 return S_; 00050 } 00051 00052 inline const Foam::scalarRectangularMatrix& Foam::SVD::VSinvUt() const 00053 { 00054 return VSinvUt_; 00055 } 00056 00057 inline Foam::label Foam::SVD::nZeros() const 00058 { 00059 return nZeros_; 00060 } 00061 00062 inline Foam::scalar Foam::SVD::minNonZeroS() const 00063 { 00064 scalar minS = S_[0]; 00065 for(label i = 1; i < S_.size(); i++) 00066 { 00067 scalar s = S_[i]; 00068 if (s > VSMALL && s < minS) minS = s; 00069 } 00070 return minS; 00071 } 00072 00073 00074 // ************************ vim: set sw=4 sts=4 et: ************************ //
