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source: trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/Symbols/Multiplication.cs @ 2668

Last change on this file since 2668 was 2490, checked in by gkronber, 15 years ago

Fixed #801.

File size: 1.5 KB
Line 
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
22
23namespace HeuristicLab.GP.StructureIdentification {
24  public sealed class Multiplication : FunctionBase {
25    public override string Description {
26      get {
27        return @"Returns the product of the results of all sub-tree.
28  (* 3) => 3
29  (* 2 3) => 6
30  (* 3 4 5) => 60";
31      }
32    }
33
34    public Multiplication()
35      : base() {
36      // 2 - 3 seems like an reasonable defaut (used for +,-,*,/) (discussion with swinkler and maffenze)
37      MinSubTrees = 1; MaxSubTrees = 3;
38    }
39
40    public override HeuristicLab.GP.Interfaces.IFunctionTree GetTreeNode() {
41      return new FunctionTreeBase(this);
42    }
43  }
44}
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