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1 /* |
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3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 2000, 2002, 2003, 2004, |
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4 2005, 2006, 2007 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 3 of the License, or (at your |
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11 option) any 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, see |
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20 <http://www.gnu.org/licenses/>. |
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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 #include <iostream> |
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28 |
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29 #include "dMatrix.h" |
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30 #include "dColVector.h" |
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31 |
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32 class |
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33 OCTAVE_API |
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34 CollocWt |
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35 { |
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36 public: |
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37 |
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38 CollocWt (void) |
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39 : n (0), inc_left (0), inc_right (0), lb (0.0), rb (1.0), |
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40 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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41 |
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42 CollocWt (octave_idx_type nc, octave_idx_type il, octave_idx_type ir) |
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43 : n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0), |
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44 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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45 |
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46 CollocWt (octave_idx_type nc, octave_idx_type il, octave_idx_type ir, double l, double rr) |
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47 : n (nc), inc_left (il), inc_right (ir), lb (l), rb (rr), |
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48 Alpha (0.0), Beta (0.0), r (), q (), A (), B (), initialized (0) { } |
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49 |
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50 CollocWt (octave_idx_type nc, double a, double b, octave_idx_type il, octave_idx_type ir) |
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51 : n (nc), inc_left (il), inc_right (ir), lb (0.0), rb (1.0), |
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52 Alpha (a), Beta (b), initialized (0) { } |
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53 |
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54 CollocWt (octave_idx_type nc, double a, double b, octave_idx_type il, octave_idx_type ir, |
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55 double ll, double rr) |
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56 : n (nc), inc_left (il), inc_right (ir), lb (ll), rb (rr), |
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57 Alpha (a), Beta (b), r (), q (), A (), B (), initialized (0) { } |
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58 |
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59 CollocWt (const CollocWt& a) |
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60 : n (a.n), inc_left (a.inc_left), inc_right (a.inc_right), |
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61 lb (a.lb), rb (a.rb), Alpha (a.Alpha), Beta (a.Beta), |
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62 r (a.r), q (a.q), A (a.A), B (a.B), |
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63 initialized (a.initialized) { } |
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64 |
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65 CollocWt& operator = (const CollocWt& a) |
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66 { |
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67 if (this != &a) |
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68 { |
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69 n = a.n; |
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70 inc_left = a.inc_left; |
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71 inc_right = a.inc_right; |
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72 lb = a.lb; |
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73 rb = a.rb; |
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74 r = a.r; |
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75 q = a.q; |
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76 A = a.A; |
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77 B = a.B; |
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78 initialized = a.initialized; |
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79 } |
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80 return *this; |
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81 } |
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82 |
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83 ~CollocWt (void) { } |
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84 |
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85 CollocWt& resize (octave_idx_type nc) |
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86 { |
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87 n = nc; |
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88 initialized = 0; |
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89 return *this; |
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90 } |
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91 |
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92 CollocWt& add_left (void) |
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93 { |
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94 inc_left = 1; |
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95 initialized = 0; |
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96 return *this; |
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97 } |
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98 |
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99 CollocWt& delete_left (void) |
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100 { |
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101 inc_left = 0; |
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102 initialized = 0; |
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103 return *this; |
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104 } |
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105 |
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106 CollocWt& set_left (double val); |
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107 |
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108 CollocWt& add_right (void) |
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109 { |
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110 inc_right = 1; |
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111 initialized = 0; |
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112 return *this; |
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113 } |
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114 |
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115 CollocWt& delete_right (void) |
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116 { |
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117 inc_right = 0; |
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118 initialized = 0; |
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119 return *this; |
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120 } |
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121 |
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122 CollocWt& set_right (double val); |
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123 |
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124 CollocWt& set_alpha (double val) |
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125 { |
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126 Alpha = val; |
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127 initialized = 0; |
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128 return *this; |
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129 } |
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130 |
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131 CollocWt& set_beta (double val) |
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132 { |
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133 Beta = val; |
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134 initialized = 0; |
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135 return *this; |
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136 } |
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137 |
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138 octave_idx_type ncol (void) const { return n; } |
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139 |
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140 octave_idx_type left_included (void) const { return inc_left; } |
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141 octave_idx_type right_included (void) const { return inc_right; } |
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142 |
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143 double left (void) const { return lb; } |
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144 double right (void) const { return rb; } |
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145 |
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146 double width (void) const { return rb - lb; } |
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147 |
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148 double alpha (void) const { return Alpha; } |
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149 double beta (void) const { return Beta; } |
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150 |
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151 ColumnVector roots (void) { if (!initialized) init (); return r; } |
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152 ColumnVector quad (void) { if (!initialized) init (); return q; } |
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153 |
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154 ColumnVector quad_weights (void) { return quad (); } |
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155 |
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156 Matrix first (void) { if (!initialized) init (); return A; } |
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157 |
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158 Matrix second (void) { if (!initialized) init (); return B; } |
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159 |
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160 friend std::ostream& operator << (std::ostream&, const CollocWt&); |
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161 |
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162 protected: |
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163 |
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164 octave_idx_type n; |
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165 |
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166 octave_idx_type inc_left; |
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167 octave_idx_type inc_right; |
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168 |
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169 double lb; |
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170 double rb; |
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171 |
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172 double Alpha; |
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173 double Beta; |
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174 |
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175 ColumnVector r; |
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176 ColumnVector q; |
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177 |
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178 Matrix A; |
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179 Matrix B; |
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180 |
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181 int initialized; |
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182 |
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183 void init (void); |
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184 |
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185 void error (const char *msg); |
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186 }; |
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187 |
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188 #endif |
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189 |
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190 /* |
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191 ;;; Local Variables: *** |
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192 ;;; mode: C++ *** |
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193 ;;; End: *** |
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194 */ |
