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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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465
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27 #if defined (__GNUG__) |
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28 #pragma interface |
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29 #endif |
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30 |
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31 class ostream; |
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32 |
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33 #include "dMatrix.h" |
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34 #include "dColVector.h" |
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35 |
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382
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36 extern "C++" { |
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37 |
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38 #ifndef Vector |
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39 #define Vector ColumnVector |
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40 #endif |
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41 |
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42 class CollocWt |
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43 { |
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44 public: |
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45 |
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46 CollocWt (void); |
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47 CollocWt (int ncol, int include_left, int include_right); |
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48 CollocWt (int ncol, int include_left, int include_right, double left, |
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49 double right); |
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50 CollocWt (int ncol, double alpha, double beta, int include_left, |
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51 int include_right); |
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52 CollocWt (int ncol, double alpha, double beta, int include_left, |
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53 int include_right, double left, double right); |
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54 |
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55 CollocWt (const CollocWt&); |
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56 |
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57 CollocWt& operator = (const CollocWt&); |
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58 |
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59 CollocWt& resize (int ncol); |
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60 |
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61 CollocWt& add_left (void); |
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62 CollocWt& delete_left (void); |
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63 CollocWt& set_left (double val); |
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64 |
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65 CollocWt& add_right (void); |
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66 CollocWt& delete_right (void); |
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67 CollocWt& set_right (double val); |
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68 |
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69 CollocWt& set_alpha (double val); |
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70 CollocWt& set_beta (double val); |
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71 |
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72 int ncol (void) const; |
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73 int left_included (void) const; |
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74 int right_included (void) const; |
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75 |
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76 double left (void) const; |
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77 double right (void) const; |
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78 double width (void) const; |
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79 |
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80 double alpha (void) const; |
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81 double beta (void) const; |
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82 |
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83 Vector roots (void); |
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84 Vector quad (void); |
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85 Vector quad_weights (void); |
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86 |
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87 Matrix first (void); |
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88 Matrix second (void); |
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89 |
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90 friend ostream& operator << (ostream&, const CollocWt&); |
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91 |
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92 protected: |
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93 |
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94 int n; |
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95 int nt; |
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96 |
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97 int inc_left; |
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98 int inc_right; |
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99 |
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100 double lb; |
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101 double rb; |
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102 |
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103 double Alpha; |
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104 double Beta; |
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105 |
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106 Vector r; |
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107 Vector q; |
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108 |
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109 Matrix A; |
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110 Matrix B; |
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111 |
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112 int initialized; |
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113 |
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114 void init (void); |
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115 |
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116 void error (const char *msg); |
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117 }; |
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118 |
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119 inline int |
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120 CollocWt::ncol (void) const |
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121 { |
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122 return n; |
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123 } |
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124 |
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125 inline int CollocWt::left_included (void) const { return inc_left; } |
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126 inline int CollocWt::right_included (void) const { return inc_right; } |
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127 inline double CollocWt::left (void) const { return lb; } |
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128 inline double CollocWt::right (void) const { return rb; } |
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129 inline double CollocWt::width (void) const { return rb - lb; } |
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130 inline double CollocWt::alpha (void) const { return Alpha; } |
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131 inline double CollocWt::beta (void) const { return Beta; } |
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132 |
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133 inline Vector CollocWt::roots (void) |
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134 { if (!initialized) init (); return r; } |
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135 |
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136 inline Vector CollocWt::quad (void) |
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137 { if (!initialized) init (); return q; } |
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138 |
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139 inline Vector CollocWt::quad_weights (void) |
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140 { return quad (); } |
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141 |
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142 inline Matrix CollocWt::first (void) |
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143 { if (!initialized) init (); return A; } |
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144 |
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145 inline Matrix CollocWt::second (void) |
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146 { if (!initialized) init (); return B; } |
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147 |
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148 } // extern "C++" |
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149 |
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150 #endif |
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151 |
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152 /* |
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153 ;;; Local Variables: *** |
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154 ;;; mode: C++ *** |
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155 ;;; page-delimiter: "^/\\*" *** |
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156 ;;; End: *** |
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157 */ |
