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annotate liboctave/numeric/EIG.h @ 23220:092078913d54

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maint: Merge stable to default.
author John W. Eaton <jwe@octave.org>
date Wed, 22 Feb 2017 12:58:07 -0500
parents ef4d915df748 3ac9f9ecfae5
children d691ed308237
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1 /*
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2
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3 Copyright (C) 1994-2017 John W. Eaton
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4
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe]
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5 This file is part of Octave.
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6
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3 of the License, or
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10 (at your option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but
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13 WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe]
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe]
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19 <http://www.gnu.org/licenses/>.
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07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe]
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21 */
07fabd96ac6a [project @ 1994-06-06 00:58:18 by jwe]
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22
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23 #if ! defined (octave_EIG_h)
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24 #define octave_EIG_h 1
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25
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26 #include "octave-config.h"
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27
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28 #include <iosfwd>
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30 #include "dMatrix.h"
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31 #include "CMatrix.h"
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32 #include "CColVector.h"
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33
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34 class
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35 OCTAVE_API
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36 EIG
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37 {
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38 friend class Matrix;
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39 friend class ComplexMatrix;
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40
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41 public:
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42
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43 EIG (void) : lambda (), v (), w () { }
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44
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45 EIG (const Matrix& a, bool calc_rev = true,
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46 bool calc_lev = true, bool balance = true)
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47 : lambda (), v (), w ()
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48 {
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49 init (a, calc_rev, calc_lev, balance);
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50 }
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52 EIG (const Matrix& a, octave_idx_type& info,
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53 bool calc_rev = true, bool calc_lev = true, bool balance = true)
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54 : lambda (), v (), w ()
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55 {
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56 info = init (a, calc_rev, calc_lev, balance);
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57 }
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58
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59 EIG (const Matrix& a, const Matrix& b,
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60 bool calc_rev = true, bool calc_lev = true, bool force_qz = false)
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61 : lambda (), v (), w ()
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62 {
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63 init (a, b, calc_rev, calc_lev, force_qz);
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64 }
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66 EIG (const Matrix& a, const Matrix& b, octave_idx_type& info,
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67 bool calc_rev = true, bool calc_lev = true, bool force_qz = false)
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68 : lambda (), v (), w ()
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69 {
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70 info = init (a, b, calc_rev, calc_lev, force_qz);
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71 }
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72
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73 EIG (const ComplexMatrix& a, bool calc_rev = true,
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74 bool calc_lev = true, bool balance = true)
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75 : lambda (), v (), w ()
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76 {
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77 init (a, calc_rev, calc_lev, balance);
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78 }
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80 EIG (const ComplexMatrix& a, octave_idx_type& info,
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81 bool calc_rev = true, bool calc_lev = true, bool balance = true)
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82 : lambda (), v (), w ()
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83 {
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84 info = init (a, calc_rev, calc_lev, balance);
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85 }
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87 EIG (const ComplexMatrix& a, const ComplexMatrix& b,
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88 bool calc_rev = true, bool calc_lev = true, bool force_qz = false)
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89 : lambda (), v (), w ()
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90 {
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91 init (a, b, calc_rev, calc_lev, force_qz);
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92 }
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94 EIG (const ComplexMatrix& a, const ComplexMatrix& b,
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95 octave_idx_type& info, bool calc_rev = true, bool calc_lev = true,
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96 bool force_qz = false)
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97 : lambda (), v (), w ()
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98 {
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99 info = init (a, b, calc_rev, calc_lev, force_qz);
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100 }
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101
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102 EIG (const EIG& a) : lambda (a.lambda), v (a.v), w (a.w) { }
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103
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104 EIG& operator = (const EIG& a)
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105 {
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106 if (this != &a)
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107 {
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108 lambda = a.lambda;
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109 v = a.v;
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110 w = a.w;
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111 }
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112 return *this;
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113 }
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114
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115 ~EIG (void) = default;
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116
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117 ComplexColumnVector eigenvalues (void) const { return lambda; }
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118 ComplexMatrix right_eigenvectors (void) const { return v; }
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119 ComplexMatrix left_eigenvectors (void) const { return w; }
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120
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121 friend std::ostream& operator << (std::ostream& os, const EIG& a);
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122
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123 private:
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124
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125 ComplexColumnVector lambda;
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126 ComplexMatrix v;
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127 ComplexMatrix w;
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128
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129 octave_idx_type init (const Matrix& a, bool calc_rev, bool calc_lev,
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130 bool balance);
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131
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132 octave_idx_type init (const Matrix& a, const Matrix& b,
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133 bool calc_rev, bool calc_lev, bool force_qz);
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134
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135 octave_idx_type init (const ComplexMatrix& a, bool calc_rev,
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136 bool calc_lev, bool balance);
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137
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138 octave_idx_type init (const ComplexMatrix& a, const ComplexMatrix& b,
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139 bool calc_rev, bool calc_lev, bool force_qz);
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140
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141 octave_idx_type symmetric_init (const Matrix& a, bool calc_rev,
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142 bool calc_lev);
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143
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144 octave_idx_type symmetric_init (const Matrix& a, const Matrix& b,
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145 bool calc_rev, bool calc_lev);
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146
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147 octave_idx_type hermitian_init (const ComplexMatrix& a,
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148 bool calc_rev, bool calc_lev);
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149
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150 octave_idx_type hermitian_init (const ComplexMatrix& a,
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151 const ComplexMatrix& b,
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152 bool calc_rev, bool calc_lev);
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153
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154 };
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155
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156 #endif