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1 // CollocWt.h -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993, 1994 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, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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382
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24 #if !defined (octave_CollocWt_h) |
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25 #define octave_CollocWt_h 1 |
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26 |
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384
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27 #include "Matrix.h" |
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28 |
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382
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29 extern "C++" { |
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30 |
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238
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31 class ostream; |
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32 |
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33 #ifndef Vector |
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34 #define Vector ColumnVector |
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35 #endif |
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36 |
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37 class CollocWt |
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38 { |
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39 public: |
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40 |
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41 CollocWt (void); |
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42 CollocWt (int ncol, int include_left, int include_right); |
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43 CollocWt (int ncol, int include_left, int include_right, double left, |
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44 double right); |
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45 CollocWt (int ncol, double alpha, double beta, int include_left, |
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46 int include_right); |
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47 CollocWt (int ncol, double alpha, double beta, int include_left, |
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48 int include_right, double left, double right); |
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49 |
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50 CollocWt (const CollocWt&); |
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51 |
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52 CollocWt& operator = (const CollocWt&); |
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53 |
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54 CollocWt& resize (int ncol); |
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55 |
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56 CollocWt& add_left (void); |
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57 CollocWt& delete_left (void); |
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58 CollocWt& set_left (double val); |
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59 |
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60 CollocWt& add_right (void); |
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61 CollocWt& delete_right (void); |
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62 CollocWt& set_right (double val); |
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63 |
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64 CollocWt& set_alpha (double val); |
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65 CollocWt& set_beta (double val); |
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66 |
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67 int ncol (void) const; |
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68 int left_included (void) const; |
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69 int right_included (void) const; |
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70 |
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71 double left (void) const; |
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72 double right (void) const; |
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73 double width (void) const; |
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74 |
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75 double alpha (void) const; |
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76 double beta (void) const; |
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77 |
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78 Vector roots (void); |
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79 Vector quad (void); |
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80 Vector quad_weights (void); |
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81 |
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82 Matrix first (void); |
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83 Matrix second (void); |
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84 |
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85 friend ostream& operator << (ostream&, const CollocWt&); |
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86 |
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87 protected: |
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88 |
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89 int n; |
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90 int nt; |
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91 |
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92 int inc_left; |
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93 int inc_right; |
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94 |
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95 double lb; |
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96 double rb; |
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97 |
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98 double Alpha; |
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99 double Beta; |
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100 |
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101 Vector r; |
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102 Vector q; |
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103 |
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104 Matrix A; |
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105 Matrix B; |
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106 |
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107 int initialized; |
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108 |
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109 void init (void); |
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110 |
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111 void error (const char *msg); |
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112 }; |
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113 |
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114 inline int |
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115 CollocWt::ncol (void) const |
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116 { |
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117 return n; |
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118 } |
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119 |
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120 inline int CollocWt::left_included (void) const { return inc_left; } |
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121 inline int CollocWt::right_included (void) const { return inc_right; } |
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122 inline double CollocWt::left (void) const { return lb; } |
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123 inline double CollocWt::right (void) const { return rb; } |
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124 inline double CollocWt::width (void) const { return rb - lb; } |
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125 inline double CollocWt::alpha (void) const { return Alpha; } |
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126 inline double CollocWt::beta (void) const { return Beta; } |
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127 |
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128 inline Vector CollocWt::roots (void) |
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129 { if (!initialized) init (); return r; } |
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130 |
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131 inline Vector CollocWt::quad (void) |
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132 { if (!initialized) init (); return q; } |
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133 |
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134 inline Vector CollocWt::quad_weights (void) |
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135 { return quad (); } |
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136 |
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137 inline Matrix CollocWt::first (void) |
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138 { if (!initialized) init (); return A; } |
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139 |
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140 inline Matrix CollocWt::second (void) |
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141 { if (!initialized) init (); return B; } |
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142 |
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382
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143 } // extern "C++" |
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144 |
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145 #endif |
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146 |
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147 /* |
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148 ;;; Local Variables: *** |
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149 ;;; mode: C++ *** |
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150 ;;; page-delimiter: "^/\\*" *** |
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151 ;;; End: *** |
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152 */ |
