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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) 1996 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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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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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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36 class |
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37 CollocWt |
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38 { |
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39 public: |
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40 |
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41 CollocWt::CollocWt (void) |
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42 : n (0), inc_left (0), inc_right (0), lb (0.0), rb (1.0), |
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43 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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44 |
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45 CollocWt::CollocWt (int nc, int il, int ir) |
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46 : n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0), |
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47 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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48 |
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49 CollocWt::CollocWt (int nc, int il, int ir, double l, double r) |
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50 : n (nc), inc_left (il), inc_right (ir), lb (l), rb (r), |
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51 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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52 |
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53 CollocWt::CollocWt (int nc, double a, double b, int il, int ir) |
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54 : n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0), |
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55 Alpha (a), Beta (b), initialized (0) { } |
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56 |
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57 CollocWt::CollocWt (int nc, double a, double b, int il, int ir, |
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58 double l, double r) |
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59 : n (nc), inc_left (il), inc_right (ir), lb (l), rb (r), |
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60 Alpha (a), Beta (b), r (), q (), A (), B (), initialized (0) { } |
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61 |
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62 CollocWt::CollocWt (const CollocWt& a) |
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63 : n (a.n), inc_left (a.inc_left), inc_right (a.inc_right), |
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64 lb (a.lb), rb (a.rb), Alpha (a.Alpha), Beta (a.Beta), |
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65 r (a.r), q (a.q), A (a.A), B (a.B), |
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66 initialized (a.initialized) { } |
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67 |
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68 CollocWt& |
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69 CollocWt::operator = (const CollocWt& a) |
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70 { |
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71 if (this != &a) |
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72 { |
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73 n = a.n; |
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74 inc_left = a.inc_left; |
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75 inc_right = a.inc_right; |
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76 lb = a.lb; |
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77 rb = a.rb; |
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78 r = a.r; |
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79 q = a.q; |
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80 A = a.A; |
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81 B = a.B; |
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82 initialized = a.initialized; |
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83 } |
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84 return *this; |
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85 } |
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86 |
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87 ~CollocWt (void) { } |
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88 |
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89 CollocWt& resize (int ncol) |
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90 { |
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91 n = ncol; |
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92 initialized = 0; |
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93 return *this; |
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94 } |
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95 |
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96 CollocWt& add_left (void) |
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97 { |
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98 inc_left = 1; |
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99 initialized = 0; |
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100 return *this; |
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101 } |
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102 |
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103 CollocWt& delete_left (void) |
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104 { |
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105 inc_left = 0; |
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106 initialized = 0; |
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107 return *this; |
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108 } |
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109 |
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110 CollocWt& set_left (double val); |
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111 |
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112 CollocWt& add_right (void) |
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113 { |
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114 inc_right = 1; |
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115 initialized = 0; |
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116 return *this; |
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117 } |
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118 |
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119 CollocWt& delete_right (void) |
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120 { |
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121 inc_right = 0; |
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122 initialized = 0; |
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123 return *this; |
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124 } |
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125 |
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126 CollocWt& set_right (double val); |
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127 |
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128 CollocWt& set_alpha (double val) |
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129 { |
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130 Alpha = val; |
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131 initialized = 0; |
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132 return *this; |
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133 } |
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134 |
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135 CollocWt& set_beta (double val) |
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136 { |
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137 Beta = val; |
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138 initialized = 0; |
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139 return *this; |
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140 } |
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141 |
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142 int ncol (void) const { return n; } |
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143 |
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144 int left_included (void) const { return inc_left; } |
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145 int right_included (void) const { return inc_right; } |
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146 |
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147 double left (void) const { return lb; } |
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148 double right (void) const { return rb; } |
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149 |
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150 double width (void) const { return rb - lb; } |
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151 |
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152 double alpha (void) const { return Alpha; } |
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153 double beta (void) const { return Beta; } |
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154 |
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155 ColumnVector roots (void) { if (!initialized) init (); return r; } |
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156 ColumnVector quad (void) { if (!initialized) init (); return q; } |
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157 |
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158 ColumnVector quad_weights (void) { return quad (); } |
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159 |
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160 Matrix first (void) { if (!initialized) init (); return A; } |
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161 |
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162 Matrix second (void) { if (!initialized) init (); return B; } |
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163 |
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164 friend ostream& operator << (ostream&, const CollocWt&); |
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165 |
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166 protected: |
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167 |
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168 int n; |
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169 |
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170 int inc_left; |
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171 int inc_right; |
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172 |
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173 double lb; |
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174 double rb; |
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175 |
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176 double Alpha; |
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177 double Beta; |
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178 |
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179 ColumnVector r; |
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180 ColumnVector q; |
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181 |
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182 Matrix A; |
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183 Matrix B; |
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184 |
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185 int initialized; |
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186 |
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187 void init (void); |
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188 |
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189 void error (const char *msg); |
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190 }; |
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191 |
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192 #endif |
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193 |
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194 /* |
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195 ;;; Local Variables: *** |
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196 ;;; mode: C++ *** |
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197 ;;; page-delimiter: "^/\\*" *** |
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198 ;;; End: *** |
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199 */ |
