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
22 #include "InterpKernelDenseMatrix.hxx"
25 namespace INTERP_KERNEL
27 class INTERPKERNEL_EXPORT LUDecomp
31 INTERP_KERNEL::DenseMatrix lu;
32 std::vector<mcIdType> indx;
34 const INTERP_KERNEL::DenseMatrix& aref;
36 LUDecomp (const INTERP_KERNEL::DenseMatrix& a);
37 void solve(const std::vector<double>& b, std::vector<double> &x);
38 void solve(const INTERP_KERNEL::DenseMatrix& b, INTERP_KERNEL::DenseMatrix &x);
39 void inverse(INTERP_KERNEL::DenseMatrix &ainv);
41 void mprove(const std::vector<double>& b, std::vector<double> &x);