Mercurial > octave
view liboctave/numeric/sparse-chol.h @ 23219:3ac9f9ecfae5 stable
maint: Update copyright dates.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 22 Feb 2017 12:39:29 -0500 |
parents | e9a0469dedd9 |
children | 092078913d54 |
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/* Copyright (C) 2016-2017 John W. Eaton Copyright (C) 2005-2016 David Bateman Copyright (C) 1998-2005 Andy Adler This file is part of Octave. Octave 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. Octave 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 Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if ! defined (octave_sparse_chol_h) #define octave_sparse_chol_h 1 #include "octave-config.h" #include "CSparse.h" #include "dRowVector.h" #include "dSparse.h" namespace octave { namespace math { // If the sparse matrix classes become templated on the element type // (i.e., sparse_matrix<double>), then it might be best to make the // template parameter of this class also be the element type instead // of the matrix type. template <typename chol_type> class sparse_chol { public: sparse_chol (void); sparse_chol (const chol_type& a, bool natural, bool force); sparse_chol (const chol_type& a, octave_idx_type& info, bool natural, bool force); sparse_chol (const chol_type& a, octave_idx_type& info, bool natural); sparse_chol (const chol_type& a, octave_idx_type& info); sparse_chol (const sparse_chol<chol_type>& a); virtual ~sparse_chol (void); sparse_chol& operator = (const sparse_chol& a); chol_type L (void) const; chol_type R (void) const { return L ().hermitian (); } octave_idx_type P (void) const; RowVector perm (void) const; SparseMatrix Q (void) const; bool is_positive_definite (void) const; double rcond (void) const; chol_type inverse (void) const; protected: typedef typename chol_type::element_type chol_elt; class sparse_chol_rep; private: sparse_chol_rep *rep; }; template <typename chol_type> chol_type chol2inv (const chol_type& r); // SparseComplexMatrix specialization. template <> sparse_chol<SparseComplexMatrix>::sparse_chol (const SparseComplexMatrix& a, octave_idx_type& info); } } #endif