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annotate liboctave/numeric/fCmplxCHOL.h @ 20626:9fb8133288e8

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chol: Support chol(a, "lower") for complex float types (bug #34850) * fCmplxCHOL.cc, fCmplxCHOL.h (FloatComplexCHOL::init, chol2inv_internal): Add is_upper parameter, propagate to underlying library functions. * fCMatrix.cc (FloatComplexMatrix::inverse): Use new argument. * chol.cc (Fchol): Likewise. This adds float complex support that was omitted in cset 5ce959c55cc0.
author Mike Miller <mtmiller@octave.org>
date Wed, 14 Oct 2015 21:31:22 -0400
parents 4197fc428c7d
children f7084eae3318
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1 /*
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2
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3 Copyright (C) 1994-2015 John W. Eaton
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4 Copyright (C) 2008-2009 Jaroslav Hajek
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 #if !defined (octave_fCmplxCHOL_h)
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25 #define octave_fCmplxCHOL_h 1
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26
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27 #include <iosfwd>
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28
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29 #include "fCMatrix.h"
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30 #include "fCColVector.h"
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31
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32 class
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33 OCTAVE_API
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34 FloatComplexCHOL
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35 {
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36 public:
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37
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38 FloatComplexCHOL (void) : chol_mat (), xrcond (0) { }
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39
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40 FloatComplexCHOL (const FloatComplexMatrix& a, bool upper = true,
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41 bool calc_cond = false)
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42 : chol_mat (), xrcond (0)
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43 {
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44 init (a, upper, calc_cond);
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45 }
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46
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47 FloatComplexCHOL (const FloatComplexMatrix& a, octave_idx_type& info,
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48 bool upper = true, bool calc_cond = false)
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49 : chol_mat (), xrcond (0)
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50 {
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51 info = init (a, upper, calc_cond);
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52 }
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53
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54 FloatComplexCHOL (const FloatComplexCHOL& a)
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55 : chol_mat (a.chol_mat), xrcond (a.xrcond) { }
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56
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57 FloatComplexCHOL& operator = (const FloatComplexCHOL& a)
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58 {
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59 if (this != &a)
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60 {
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61 chol_mat = a.chol_mat;
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62 xrcond = a.xrcond;
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63 }
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64
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65 return *this;
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66 }
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67
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68 FloatComplexMatrix chol_matrix (void) const { return chol_mat; }
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69
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70 float rcond (void) const { return xrcond; }
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71
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72 FloatComplexMatrix inverse (void) const;
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73
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74 void set (const FloatComplexMatrix& R);
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75
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76 void update (const FloatComplexColumnVector& u);
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77
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78 octave_idx_type downdate (const FloatComplexColumnVector& u);
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79
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80 octave_idx_type insert_sym (const FloatComplexColumnVector& u,
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81 octave_idx_type j);
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82
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83 void delete_sym (octave_idx_type j);
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84
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85 void shift_sym (octave_idx_type i, octave_idx_type j);
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86
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87 friend OCTAVE_API std::ostream& operator << (std::ostream& os,
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88 const FloatComplexCHOL& a);
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90 private:
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91
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92 FloatComplexMatrix chol_mat;
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93
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94 float xrcond;
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95
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96 bool is_upper;
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97
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98 octave_idx_type init (const FloatComplexMatrix& a, bool upper, bool calc_cond);
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99 };
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100
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101 FloatComplexMatrix OCTAVE_API chol2inv (const FloatComplexMatrix& r);
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102
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103 #endif