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annotate liboctave/fEIG.h @ 7961:a5d1e27ee1f4 ss-3-1-51

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3.1.51 snapshot
author John W. Eaton <jwe@octave.org>
date Tue, 22 Jul 2008 11:40:48 -0400
parents 82be108cc558
children 18c4ded8612a
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1 /*
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2
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3 Copyright (C) 1994, 1995, 1996, 1997, 2000, 2002, 2004, 2005, 2006,
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4 2007 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 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_float_EIG_h)
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25 #define octave_float_EIG_h 1
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26
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27 #include <iostream>
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28
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29 #include "fMatrix.h"
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30 #include "fCMatrix.h"
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31 #include "fCColVector.h"
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32
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33 class
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34 OCTAVE_API
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35 FloatEIG
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36 {
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37 friend class FloatMatrix;
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38 friend class FloatComplexMatrix;
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39
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40 public:
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41
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42 FloatEIG (void)
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43 : lambda (), v () { }
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44
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45 FloatEIG (const FloatMatrix& a, bool calc_eigenvectors = true)
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46 { init (a, calc_eigenvectors); }
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47
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48 FloatEIG (const FloatMatrix& a, octave_idx_type& info, bool calc_eigenvectors = true)
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49 { info = init (a, calc_eigenvectors); }
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50
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51 FloatEIG (const FloatComplexMatrix& a, bool calc_eigenvectors = true)
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52 { init (a, calc_eigenvectors); }
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53
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54 FloatEIG (const FloatComplexMatrix& a, octave_idx_type& info, bool calc_eigenvectors = true)
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55 { info = init (a, calc_eigenvectors); }
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56
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57 FloatEIG (const FloatEIG& a)
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58 : lambda (a.lambda), v (a.v) { }
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59
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60 FloatEIG& operator = (const FloatEIG& a)
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61 {
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62 if (this != &a)
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63 {
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64 lambda = a.lambda;
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65 v = a.v;
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66 }
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67 return *this;
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68 }
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69
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70 ~FloatEIG (void) { }
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71
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72 FloatComplexColumnVector eigenvalues (void) const { return lambda; }
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73
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74 FloatComplexMatrix eigenvectors (void) const { return v; }
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75
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76 friend std::ostream& operator << (std::ostream& os, const FloatEIG& a);
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77
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78 private:
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79
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80 FloatComplexColumnVector lambda;
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81 FloatComplexMatrix v;
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82
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83 octave_idx_type init (const FloatMatrix& a, bool calc_eigenvectors);
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84 octave_idx_type init (const FloatComplexMatrix& a, bool calc_eigenvectors);
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85
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86 octave_idx_type symmetric_init (const FloatMatrix& a, bool calc_eigenvectors);
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87 octave_idx_type hermitian_init (const FloatComplexMatrix& a, bool calc_eigenvectors);
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88 };
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89
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90 #endif
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91
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92 /*
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93 ;;; Local Variables: ***
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94 ;;; mode: C++ ***
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95 ;;; End: ***
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96 */