Mercurial > octave
view liboctave/numeric/qr.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) 1994-2017 John W. Eaton Copyright (C) 2008-2009 Jaroslav Hajek Copyright (C) 2009 VZLU Prague 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_qr_h) #define octave_qr_h 1 #include "octave-config.h" #include "Array.h" namespace octave { namespace math { template <typename T> class qr { public: typedef typename T::element_type ELT_T; typedef typename T::row_vector_type RV_T; typedef typename T::column_vector_type CV_T; enum type { std, raw, economy }; qr (void) : q (), r () { } qr (const T& a, type qr_type = qr::std) : q (), r () { init (a, qr_type); } qr (const T& q, const T& r); qr (const qr& a) : q (a.q), r (a.r) { } qr& operator = (const qr& a) { if (this != &a) { q = a.q; r = a.r; } return *this; } virtual ~qr (void) { } T Q (void) const { return q; } T R (void) const { return r; } type get_type (void) const; bool regular (void) const; void init (const T& a, type qr_type); void update (const CV_T& u, const CV_T& v); void update (const T& u, const T& v); void insert_col (const CV_T& u, octave_idx_type j); void insert_col (const T& u, const Array<octave_idx_type>& j); void delete_col (octave_idx_type j); void delete_col (const Array<octave_idx_type>& j); void insert_row (const RV_T& u, octave_idx_type j); void delete_row (octave_idx_type j); void shift_cols (octave_idx_type i, octave_idx_type j); protected: T q; T r; void form (octave_idx_type n, T& afact, ELT_T *tau, type qr_type); }; extern void warn_qrupdate_once (void); } } #endif