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1 /* |
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2 |
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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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 the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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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, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_QR_h) |
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24 #define octave_QR_h 1 |
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25 |
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26 #if defined (__GNUG__) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 class ostream; |
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31 |
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32 #include "dMatrix.h" |
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33 |
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34 class |
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35 QR |
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36 { |
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37 public: |
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38 |
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39 enum type |
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40 { |
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41 std, |
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42 raw, |
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43 economy |
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44 }; |
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45 |
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46 QR (void) : q (), r () { } |
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47 |
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48 QR (const Matrix&, QR::type = QR::std); |
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49 |
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50 QR (const QR& a) : q (a.q), r (a.r) { } |
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51 |
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52 QR& operator = (const QR& a) |
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53 { |
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54 if (this != &a) |
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55 { |
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56 q = a.q; |
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57 r = a.r; |
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58 } |
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59 return *this; |
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60 } |
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61 |
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62 ~QR (void) { } |
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63 |
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64 void init (const Matrix&, QR::type); |
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65 |
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66 Matrix Q (void) const { return q; } |
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67 |
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68 Matrix R (void) const { return r; } |
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69 |
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70 friend ostream& operator << (ostream&, const QR&); |
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71 |
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72 protected: |
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73 |
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74 Matrix q; |
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75 Matrix r; |
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76 }; |
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77 |
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78 #endif |
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79 |
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80 /* |
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81 ;;; Local Variables: *** |
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82 ;;; mode: C++ *** |
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83 ;;; End: *** |
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84 */ |
