Mercurial > octave
view liboctave/numeric/lu.h @ 27919:1891570abac8
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2020.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 06 Jan 2020 22:29:51 -0500 |
parents | b442ec6dda5c |
children | bd51beb6205e |
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/* Copyright (C) 1996-2020 The Octave Project Developers See the file COPYRIGHT.md in the top-level directory of this distribution or <https://octave.org/COPYRIGHT.html/>. 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 <https://www.gnu.org/licenses/>. */ #if ! defined (octave_lu_h) #define octave_lu_h 1 #include "octave-config.h" #include "Array.h" class ColumnVector; class PermMatrix; namespace octave { namespace math { template <typename T> class lu { public: typedef typename T::column_vector_type VT; typedef typename T::element_type ELT_T; lu (void) : a_fact (), l_fact (), ipvt () { } lu (const T& a); lu (const lu& a) : a_fact (a.a_fact), l_fact (a.l_fact), ipvt (a.ipvt) { } lu (const T& l, const T& u, const PermMatrix& p); lu& operator = (const lu& a) { if (this != &a) { a_fact = a.a_fact; l_fact = a.l_fact; ipvt = a.ipvt; } return *this; } virtual ~lu (void) = default; bool packed (void) const; void unpack (void); T L (void) const; T U (void) const; T Y (void) const; PermMatrix P (void) const; ColumnVector P_vec (void) const; bool regular (void) const; void update (const VT& u, const VT& v); void update (const T& u, const T& v); void update_piv (const VT& u, const VT& v); void update_piv (const T& u, const T& v); protected: // The result of getp is passed to other Octave Matrix functions, // so we use octave_idx_type. Array<octave_idx_type> getp (void) const; T a_fact; T l_fact; // This is internal storage that is passed to Fortran, // so we need a Fortran INTEGER. Array<octave_f77_int_type> ipvt; }; } } #endif