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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_CollocWt_h) |
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24 #define octave_CollocWt_h 1 |
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25 |
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26 #if defined (__GNUG__) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 class ostream; |
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31 |
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32 #include "dMatrix.h" |
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33 #include "dColVector.h" |
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34 |
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1869
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35 class |
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36 CollocWt |
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37 { |
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38 public: |
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39 |
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40 CollocWt::CollocWt (void) |
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41 : n (0), inc_left (0), inc_right (0), lb (0.0), rb (1.0), |
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42 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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43 |
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44 CollocWt::CollocWt (int nc, int il, int ir) |
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45 : n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0), |
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46 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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47 |
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48 CollocWt::CollocWt (int nc, int il, int ir, double l, double r) |
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49 : n (nc), inc_left (il), inc_right (ir), lb (l), rb (r), |
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50 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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51 |
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52 CollocWt::CollocWt (int nc, double a, double b, int il, int ir) |
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53 : n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0), |
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54 Alpha (a), Beta (b), initialized (0) { } |
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55 |
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56 CollocWt::CollocWt (int nc, double a, double b, int il, int ir, |
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57 double l, double r) |
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58 : n (nc), inc_left (il), inc_right (ir), lb (l), rb (r), |
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59 Alpha (a), Beta (b), r (), q (), A (), B (), initialized (0) { } |
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60 |
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61 CollocWt::CollocWt (const CollocWt& a) |
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62 : n (a.n), inc_left (a.inc_left), inc_right (a.inc_right), |
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63 lb (a.lb), rb (a.rb), Alpha (a.Alpha), Beta (a.Beta), |
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64 r (a.r), q (a.q), A (a.A), B (a.B), |
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65 initialized (a.initialized) { } |
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66 |
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67 CollocWt& |
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68 CollocWt::operator = (const CollocWt& a) |
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69 { |
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70 if (this != &a) |
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71 { |
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72 n = a.n; |
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73 inc_left = a.inc_left; |
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74 inc_right = a.inc_right; |
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75 lb = a.lb; |
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76 rb = a.rb; |
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77 r = a.r; |
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78 q = a.q; |
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79 A = a.A; |
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80 B = a.B; |
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81 initialized = a.initialized; |
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82 } |
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83 return *this; |
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84 } |
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85 |
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86 ~CollocWt (void) { } |
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87 |
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88 CollocWt& resize (int ncol) |
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89 { |
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90 n = ncol; |
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91 initialized = 0; |
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92 return *this; |
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93 } |
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94 |
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95 CollocWt& add_left (void) |
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96 { |
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97 inc_left = 1; |
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98 initialized = 0; |
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99 return *this; |
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100 } |
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101 |
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102 CollocWt& delete_left (void) |
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103 { |
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104 inc_left = 0; |
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105 initialized = 0; |
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106 return *this; |
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107 } |
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108 |
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109 CollocWt& set_left (double val); |
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110 |
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111 CollocWt& add_right (void) |
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112 { |
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113 inc_right = 1; |
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114 initialized = 0; |
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115 return *this; |
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116 } |
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117 |
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118 CollocWt& delete_right (void) |
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119 { |
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120 inc_right = 0; |
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121 initialized = 0; |
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122 return *this; |
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123 } |
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124 |
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125 CollocWt& set_right (double val); |
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126 |
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127 CollocWt& set_alpha (double val) |
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128 { |
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129 Alpha = val; |
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130 initialized = 0; |
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131 return *this; |
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132 } |
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133 |
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134 CollocWt& set_beta (double val) |
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135 { |
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136 Beta = val; |
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137 initialized = 0; |
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138 return *this; |
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139 } |
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140 |
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141 int ncol (void) const { return n; } |
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142 |
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143 int left_included (void) const { return inc_left; } |
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144 int right_included (void) const { return inc_right; } |
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145 |
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146 double left (void) const { return lb; } |
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147 double right (void) const { return rb; } |
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148 |
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149 double width (void) const { return rb - lb; } |
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150 |
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151 double alpha (void) const { return Alpha; } |
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152 double beta (void) const { return Beta; } |
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153 |
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154 ColumnVector roots (void) { if (!initialized) init (); return r; } |
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155 ColumnVector quad (void) { if (!initialized) init (); return q; } |
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156 |
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157 ColumnVector quad_weights (void) { return quad (); } |
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158 |
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159 Matrix first (void) { if (!initialized) init (); return A; } |
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160 |
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161 Matrix second (void) { if (!initialized) init (); return B; } |
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162 |
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163 friend ostream& operator << (ostream&, const CollocWt&); |
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164 |
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165 protected: |
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166 |
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167 int n; |
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168 |
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169 int inc_left; |
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170 int inc_right; |
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171 |
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172 double lb; |
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173 double rb; |
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174 |
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175 double Alpha; |
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176 double Beta; |
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177 |
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178 ColumnVector r; |
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179 ColumnVector q; |
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180 |
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181 Matrix A; |
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182 Matrix B; |
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183 |
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184 int initialized; |
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185 |
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186 void init (void); |
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187 |
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188 void error (const char *msg); |
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189 }; |
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190 |
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191 #endif |
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192 |
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193 /* |
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194 ;;; Local Variables: *** |
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195 ;;; mode: C++ *** |
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196 ;;; End: *** |
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197 */ |
