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