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source: trunk/sources/HeuristicLab.TestFunctions/BealeEvaluator.cs @ 630

Last change on this file since 630 was 291, checked in by swagner, 17 years ago

Worked on ticket #135

  • added additional test functions implemented by adoppelb
File size: 1.5 KB
RevLine 
[291]1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Text;
25
26namespace HeuristicLab.TestFunctions {
27  public class BealeEvaluator : TestFunctionEvaluatorBase {
28    public override string Description {
29      get { return
30@"Beale Function
31
32Domain:  [-4.5 , 4.5]^2
33Optimum: 0.0 at (3.0, 0.5)";
34          }
35    }
36
37    public static double Applay(double[] point) {
38      return Math.Pow(1.5 - point[0] * (1 - point[1]), 2) + Math.Pow(2.25 - point[0] * (1 - (point[1] * point[1])), 2) + Math.Pow((2.625 - point[0] * (1 - (point[1] * point[1] * point[1]))), 2);
39    }
40
41    protected override double EvaluateFunction(double[] point) {
42      return Applay(point);
43    }
44  }
45}
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