1 // Copyright (C) 2022-2024 CEA, EDF
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 // Implementation coming from Numerical Recipes in C of 1994 (version 2.04)
24 #include "InterpKernelDenseMatrix.hxx"
27 namespace INTERP_KERNEL
33 INTERP_KERNEL::DenseMatrix qt;
34 INTERP_KERNEL::DenseMatrix r;
37 QRDecomp(const INTERP_KERNEL::DenseMatrix& a);
38 void solve(const std::vector<double>& b, std::vector<double> &x);
39 void qtmult(const std::vector<double>& b, std::vector<double> &x);
40 void rsolve(const std::vector<double>& b, std::vector<double> &x);
41 void update(const std::vector<double>& u, const std::vector<double>& v);
42 void rotate(const mcIdType i, const double a, const double b);