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1 // -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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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 2, or (at your option) any |
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11 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, write to the Free |
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_ComplexSVD_h) |
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25 #define octave_ComplexSVD_h 1 |
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26 |
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27 #if defined (__GNUG__) |
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28 #pragma interface |
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29 #endif |
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30 |
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31 class ostream; |
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32 |
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33 #include "dDiagMatrix.h" |
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34 #include "CMatrix.h" |
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35 #include "dbleSVD.h" |
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36 |
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37 class ComplexSVD |
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38 { |
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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 ComplexSVD (void) {} |
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44 |
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45 ComplexSVD (const ComplexMatrix& a, SVD::type svd_type = SVD::std); |
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46 ComplexSVD (const ComplexMatrix& a, int& info, |
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47 SVD::type svd_type = SVD::std); |
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48 |
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49 ComplexSVD (const ComplexSVD& a); |
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50 |
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51 ComplexSVD& operator = (const ComplexSVD& a); |
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52 |
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53 DiagMatrix singular_values (void) const; |
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54 ComplexMatrix left_singular_matrix (void) const; |
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55 ComplexMatrix right_singular_matrix (void) const; |
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56 |
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57 friend ostream& operator << (ostream& os, const ComplexSVD& a); |
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58 |
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59 private: |
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60 |
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61 int init (const ComplexMatrix& a, SVD::type svd_type = SVD::std); |
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62 |
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63 DiagMatrix sigma; |
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64 ComplexMatrix left_sm; |
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65 ComplexMatrix right_sm; |
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66 }; |
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67 |
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68 inline ComplexSVD::ComplexSVD (const ComplexMatrix& a, SVD::type svd_type) |
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69 { |
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70 init (a, svd_type); |
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71 } |
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72 |
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73 inline ComplexSVD::ComplexSVD (const ComplexMatrix& a, int& info, |
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74 SVD::type svd_type) |
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75 { |
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76 info = init (a, svd_type); |
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77 } |
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78 |
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79 inline ComplexSVD::ComplexSVD (const ComplexSVD& a) |
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80 { |
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81 sigma = a.sigma; |
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82 left_sm = a.left_sm; |
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83 right_sm = a.right_sm; |
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84 } |
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85 |
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86 inline ComplexSVD& |
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87 ComplexSVD::operator = (const ComplexSVD& a) |
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88 { |
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89 sigma = a.sigma; |
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90 left_sm = a.left_sm; |
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91 right_sm = a.right_sm; |
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92 |
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93 return *this; |
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94 } |
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95 |
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96 inline DiagMatrix ComplexSVD::singular_values (void) const |
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97 { |
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98 return sigma; |
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99 } |
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100 |
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101 inline ComplexMatrix ComplexSVD::left_singular_matrix (void) const |
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102 { |
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103 return left_sm; |
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104 } |
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105 |
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106 inline ComplexMatrix ComplexSVD::right_singular_matrix (void) const |
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107 { |
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108 return right_sm; |
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109 } |
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110 |
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111 #endif |
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112 |
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113 /* |
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114 ;;; Local Variables: *** |
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115 ;;; mode: C++ *** |
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116 ;;; page-delimiter: "^/\\*" *** |
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117 ;;; End: *** |
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118 */ |
