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annotate liboctave/numeric/chol.h @ 33636:3ec6fcce7715 default tip @

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gui: Avoid using HAVE_QSCINTILLA in more header files. * gui-settings.h, settings-dialog.h: Don't include QScintilla header. Forward-declare QSciLexer class instead if necessary. Declare all member functions unconditionally. * gui-settings.cc (gui_settings::get_valid_lexer_styles, gui_settings::read_lexer_settings), settings-dialog.cc (settings_dialog::update_lexer, settings_dialog::get_lexer_settings, settings_dialog::write_lexer_settings): Define functions unconditionally. * gui-preferences-ed.h: Don't include QScintilla header. Remove definition of local variable os_eol_mode from header. * gui-preferences-ed.cc (os_eol_mode): Move definition of local variable here.
author Markus Mützel <markus.muetzel@gmx.de>
date Tue, 28 May 2024 14:54:58 +0200
parents 4b601ca024d5
children
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1994-2024 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_chol_h)
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27 #define octave_chol_h 1
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28
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29 #include "octave-config.h"
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30
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31 OCTAVE_BEGIN_NAMESPACE(octave)
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32
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33 OCTAVE_BEGIN_NAMESPACE(math)
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34
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35 template <typename T>
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36 class chol
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37 {
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38 public:
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39
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40 typedef typename T::column_vector_type VT;
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41 typedef typename T::real_elt_type COND_T;
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42
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43 chol () : m_chol_mat (), m_rcond (0), m_is_upper (true) { }
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44
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45 chol (const T& a, bool upper = true, bool calc_cond = false)
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46 : m_chol_mat (), m_rcond (0)
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47 {
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48 init (a, upper, calc_cond);
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49 }
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50
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51 chol (const T& a, octave_idx_type& info, bool upper = true,
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52 bool calc_cond = false)
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53 : m_chol_mat (), m_rcond (0)
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54 {
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55 info = init (a, upper, calc_cond);
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56 }
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57
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58 OCTAVE_DEFAULT_COPY_MOVE_DELETE (chol)
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59
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60 T chol_matrix () const { return m_chol_mat; }
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61
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62 COND_T rcond () const { return m_rcond; }
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63
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64 // Compute the inverse of a matrix using the Cholesky factorization.
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65 OCTAVE_API T inverse () const;
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66
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67 OCTAVE_API void set (const T& R);
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68
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69 OCTAVE_API void update (const VT& u);
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70
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71 OCTAVE_API octave_idx_type downdate (const VT& u);
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72
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73 OCTAVE_API octave_idx_type insert_sym (const VT& u, octave_idx_type j);
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74
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75 OCTAVE_API void delete_sym (octave_idx_type j);
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76
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77 OCTAVE_API void shift_sym (octave_idx_type i, octave_idx_type j);
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78
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79 private:
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80
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81 T m_chol_mat;
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82
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83 COND_T m_rcond;
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84
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85 bool m_is_upper;
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86
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87 OCTAVE_API octave_idx_type init (const T& a, bool upper, bool calc_cond);
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88 };
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89
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90 template <typename T>
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91 OCTAVE_API T
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92 chol2inv (const T& r);
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93
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94 OCTAVE_END_NAMESPACE(math)
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95 OCTAVE_END_NAMESPACE(octave)
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96
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97 #endif