Mercurial > octave
view liboctave/numeric/qr.h @ 31221:f5755dbacd8d
maint: merge stable to default
author | Pantxo Diribarne <pantxo.diribarne@gmail.com> |
---|---|
date | Wed, 31 Aug 2022 22:04:02 +0200 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1994-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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_qr_h) #define octave_qr_h 1 #include "octave-config.h" #include "Array-fwd.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) : m_q (), m_r () { } qr (const T& a, type qr_type = qr::std) : m_q (), m_r () { init (a, qr_type); } OCTAVE_API qr (const T& m_q, const T& m_r); qr (const qr& a) : m_q (a.m_q), m_r (a.m_r) { } qr& operator = (const qr& a) { if (this != &a) { m_q = a.m_q; m_r = a.m_r; } return *this; } virtual ~qr (void) = default; T Q (void) const { return m_q; } T R (void) const { return m_r; } OCTAVE_API type get_type (void) const; OCTAVE_API bool regular (void) const; OCTAVE_API void init (const T& a, type qr_type); OCTAVE_API void update (const CV_T& u, const CV_T& v); OCTAVE_API void update (const T& u, const T& v); OCTAVE_API void insert_col (const CV_T& u, octave_idx_type j); OCTAVE_API void insert_col (const T& u, const Array<octave_idx_type>& j); OCTAVE_API void delete_col (octave_idx_type j); OCTAVE_API void delete_col (const Array<octave_idx_type>& j); OCTAVE_API void insert_row (const RV_T& u, octave_idx_type j); OCTAVE_API void delete_row (octave_idx_type j); OCTAVE_API void shift_cols (octave_idx_type i, octave_idx_type j); protected: T m_q; T m_r; OCTAVE_API void form (octave_idx_type n, T& afact, ELT_T *tau, type qr_type); }; extern OCTAVE_API void warn_qrupdate_once (void); } } #endif