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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #if !defined (octave_NLEqn_h) |
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25 #define octave_NLEqn_h 1 |
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26 |
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27 #include <cfloat> |
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28 #include <cmath> |
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29 |
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30 #include "NLEqn-opts.h" |
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31 |
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32 class |
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33 NLEqn : public NLFunc, public NLEqn_options |
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34 { |
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35 public: |
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36 |
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37 NLEqn (void) |
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38 : NLFunc (), NLEqn_options (), x (), solution_status (0) { } |
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39 |
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40 NLEqn (const ColumnVector& xx, const NLFunc f) |
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41 : NLFunc (f), NLEqn_options (), x (xx), solution_status (0) { } |
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42 |
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43 NLEqn (const NLEqn& a) |
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44 : NLFunc (a.fun, a.jac), NLEqn_options (), x (a.x), |
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45 solution_status (a.solution_status) { } |
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46 |
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47 NLEqn& operator = (const NLEqn& a) |
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48 { |
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49 if (this != &a) |
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50 { |
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51 NLFunc::operator = (a); |
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52 NLEqn_options::operator = (a); |
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53 |
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54 x = a.x; |
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55 solution_status = a.solution_status; |
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56 } |
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57 return *this; |
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58 } |
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59 |
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60 ~NLEqn (void) { } |
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61 |
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62 void set_states (const ColumnVector& xx) { x = xx; } |
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63 |
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64 ColumnVector states (void) const { return x; } |
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65 |
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66 octave_idx_type size (void) const { return x.capacity (); } |
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67 |
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68 ColumnVector solve (void) |
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69 { |
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70 octave_idx_type info; |
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71 return solve (info); |
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72 } |
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73 |
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74 ColumnVector solve (const ColumnVector& xvec) |
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75 { |
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76 set_states (xvec); |
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77 octave_idx_type info; |
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78 return solve (info); |
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79 } |
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80 |
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81 ColumnVector solve (const ColumnVector& xvec, octave_idx_type& info) |
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82 { |
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83 set_states (xvec); |
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84 return solve (info); |
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85 } |
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86 |
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87 ColumnVector solve (octave_idx_type& info); |
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88 |
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89 octave_idx_type solution_state (void) const { return solution_status; } |
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90 |
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91 bool solution_ok (void) const { return solution_status == 1; } |
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92 |
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93 std::string error_message (void) const; |
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94 |
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95 private: |
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96 |
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97 ColumnVector x; |
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98 octave_idx_type solution_status; |
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99 |
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100 void error (const char* msg); |
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101 }; |
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102 |
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103 #endif |
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104 |
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105 /* |
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106 ;;; Local Variables: *** |
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107 ;;; mode: C++ *** |
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108 ;;; End: *** |
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109 */ |
