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1 /* |
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2 |
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3 Copyright (C) 2004 David Bateman |
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4 Copyright (C) 1998-2004 Andy Adler |
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5 |
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6 Octave is free software; you can redistribute it and/or modify it |
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7 under the terms of the GNU General Public License as published by the |
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8 Free Software Foundation; either version 2, or (at your option) any |
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9 later version. |
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10 |
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11 Octave is distributed in the hope that it will be useful, but WITHOUT |
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 for more details. |
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15 |
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16 You should have received a copy of the GNU General Public License |
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17 along with this program; see the file COPYING. If not, write to the |
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18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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19 Boston, MA 02110-1301, USA. |
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20 |
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21 */ |
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22 |
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23 |
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24 #if !defined (octave_sparse_base_lu_h) |
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25 #define octave_sparse_base_lu_h 1 |
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26 |
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27 #include "MArray.h" |
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28 |
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29 template <class lu_type, class lu_elt_type, class p_type, class p_elt_type> |
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30 class |
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31 sparse_base_lu |
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32 { |
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33 public: |
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34 |
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35 sparse_base_lu (void) { } |
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36 |
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37 sparse_base_lu (const sparse_base_lu& a) |
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38 : Lfact (a.Lfact), Ufact (a.Ufact), cond (a.cond), P (a.P), Q (a.Q) { } |
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39 |
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40 sparse_base_lu& operator = (const sparse_base_lu& a) |
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41 { |
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42 if (this != &a) |
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43 { |
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44 Lfact = a.Lfact; |
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45 Ufact = a.Ufact; |
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46 cond = a.cond; |
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47 P = a.P; |
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48 Q = a.Q; |
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49 } |
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50 return *this; |
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51 } |
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52 |
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53 ~sparse_base_lu (void) { } |
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54 |
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55 lu_type L (void) const { return Lfact; } |
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56 |
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57 lu_type U (void) const { return Ufact; } |
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58 |
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59 p_type Pc (void) const; |
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60 |
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61 p_type Pr (void) const; |
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62 |
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63 const octave_idx_type * row_perm (void) const { return P.fortran_vec (); } |
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64 |
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65 const octave_idx_type * col_perm (void) const { return Q.fortran_vec (); } |
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66 |
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67 double rcond (void) const { return cond; } |
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68 |
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69 protected: |
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70 |
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71 lu_type Lfact; |
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72 lu_type Ufact; |
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73 |
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74 double cond; |
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75 |
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76 MArray<octave_idx_type> P; |
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77 MArray<octave_idx_type> Q; |
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78 }; |
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79 |
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80 #endif |
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81 |
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82 /* |
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83 ;;; Local Variables: *** |
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84 ;;; mode: C++ *** |
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85 ;;; End: *** |
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86 */ |
