1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2019 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License 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 HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 | using System;
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22 | using HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HEAL.Attic;
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25 |
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26 | namespace HeuristicLab.Problems.DataAnalysis {
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27 | [StorableType("8109BE58-CCFB-4462-A2F4-EEE5DFADAFF7")]
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28 | [Item("Interval Constraint", "Constraint on intervals.")]
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29 | public sealed class IntervalConstraint : Item {
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30 | private string expression;
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31 | [Storable]
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32 | public string Expression {
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33 | get => expression;
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34 | private set {
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35 | if (expression != value) {
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36 | expression = value;
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37 | OnChanged();
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38 | OnToStringChanged();
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39 | }
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40 | }
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41 | }
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42 |
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43 | public string Definition {
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44 | get { return GetDefinitionString(); }
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45 | }
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46 |
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47 | private string variable;
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48 | [Storable]
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49 | public string Variable {
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50 | get => variable;
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51 | private set {
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52 | if (variable != value) {
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53 | variable = value;
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54 | UpdateExpression();
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55 | OnChanged();
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56 | }
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57 | }
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58 | }
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59 |
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60 | public bool IsDerivation {
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61 | get => numberOfDerivation > 0;
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62 | }
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63 |
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64 | private int numberOfDerivation;
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65 | [Storable]
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66 | public int NumberOfDerivation {
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67 | get => numberOfDerivation;
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68 | set {
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69 | if (value < 0 || value > 3)
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70 | throw new ArgumentException("Number of derivation has to be between 0 - 3.");
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71 | if (numberOfDerivation != value) {
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72 | numberOfDerivation = value;
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73 | UpdateExpression();
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74 | OnChanged();
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75 | }
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76 | }
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77 | }
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78 |
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79 | private Interval interval;
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80 | [Storable]
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81 | public Interval Interval {
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82 | get => interval;
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83 | set {
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84 | if (interval != value) {
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85 | interval = value;
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86 | UpdateExpression();
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87 | OnChanged();
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88 | }
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89 | }
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90 | }
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91 | private bool inclusiveLowerBound;
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92 | [Storable]
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93 | public bool InclusiveLowerBound {
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94 | get => inclusiveLowerBound;
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95 | set {
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96 | if (inclusiveLowerBound != value) {
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97 | inclusiveLowerBound = value;
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98 | UpdateExpression();
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99 | OnChanged();
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100 | }
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101 | }
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102 | }
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103 |
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104 | private bool inclusiveUpperBound;
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105 |
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106 | [Storable]
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107 | public bool InclusiveUpperBound {
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108 | get => inclusiveUpperBound;
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109 | set {
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110 | if (inclusiveUpperBound != value) {
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111 | inclusiveUpperBound = value;
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112 | UpdateExpression();
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113 | OnChanged();
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114 | }
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115 | }
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116 | }
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117 |
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118 | private bool enabled;
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119 | [Storable]
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120 | public bool Enabled {
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121 | get => enabled;
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122 | set {
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123 | if (value != enabled) {
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124 | enabled = value;
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125 | OnChanged();
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126 | }
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127 | }
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128 | }
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129 |
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130 | [StorableConstructor]
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131 | private IntervalConstraint(StorableConstructorFlag _) : base(_) { }
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132 |
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133 | public IntervalConstraint(string expression, string variable, int numberOfDerivation, Interval interval, bool inclusiveLowerBound,
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134 | bool inclusiveUpperBound, bool enabled) : base(){
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135 | this.expression = expression;
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136 | this.variable = variable;
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137 | this.numberOfDerivation = numberOfDerivation;
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138 | this.interval = interval;
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139 | this.inclusiveLowerBound = inclusiveLowerBound;
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140 | this.inclusiveUpperBound = inclusiveUpperBound;
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141 | this.enabled = enabled;
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142 | }
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143 |
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144 | public override IDeepCloneable Clone(Cloner cloner) {
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145 | return new IntervalConstraint(this, cloner);
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146 | }
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147 |
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148 | private IntervalConstraint(IntervalConstraint original, Cloner cloner)
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149 | : base(original, cloner) {
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150 | this.Expression = original.Expression;
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151 | this.Interval = original.Interval;
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152 | this.InclusiveLowerBound = original.InclusiveLowerBound;
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153 | this.InclusiveUpperBound = original.InclusiveUpperBound;
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154 | this.Variable = original.Variable;
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155 | this.NumberOfDerivation = original.NumberOfDerivation;
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156 | this.enabled = original.enabled;
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157 | }
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158 |
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159 | public event EventHandler Changed;
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160 | private void OnChanged() {
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161 | EventHandler handlers = Changed;
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162 | if (handlers != null)
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163 | handlers(this, EventArgs.Empty);
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164 | }
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165 |
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166 | private static string GetDerivationString(int derivation) {
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167 | switch (derivation) {
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168 | case 1:
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169 | return "";
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170 | case 2:
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171 | return "²";
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172 | case 3:
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173 | return "³";
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174 | default:
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175 | return "";
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176 | }
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177 | }
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178 |
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179 | private void UpdateExpression() {
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180 | var expression = "";
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181 |
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182 | if (!IsDerivation) {
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183 | expression = string.Format("{0} in {1}{2} .. {3}{4}",
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184 | Variable,
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185 | (InclusiveLowerBound) ? "[" : "]",
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186 | Interval.LowerBound,
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187 | Interval.UpperBound,
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188 | (InclusiveUpperBound) ? "]" : "[");
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189 | Expression = expression;
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190 | return;
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191 | }
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192 | expression = string.Format("\u2202{5}Target/\u2202{0}{5} in {1}{2} .. {3}{4}",
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193 | Variable,
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194 | (InclusiveLowerBound) ? "[" : "]",
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195 | Interval.LowerBound,
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196 | Interval.UpperBound,
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197 | (InclusiveUpperBound) ? "]" : "[",
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198 | GetDerivationString(numberOfDerivation));
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199 | Expression = expression;
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200 | }
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201 |
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202 | private string GetDefinitionString() {
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203 | if (!IsDerivation) {
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204 | return "Target " + Variable;
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205 | }
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206 | var definition = $"\u2202{GetDerivationString(numberOfDerivation)}Target/\u2202{Variable}{GetDerivationString(numberOfDerivation)}";
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207 | return definition;
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208 | }
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209 |
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210 | public override string ToString() {
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211 | return Expression;
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212 | }
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213 | }
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214 | }
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