Changeset 16083 for branches/2937_SymReg_AnalyticalQuotient/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/TreeToAutoDiffTermConverter.cs

Timestamp:

08/16/18 09:45:36 (6 years ago)

Author:

gkronber

Message:

#2937: added symbol for AQ and support for AQ in interpreter and AutoDiff converter

File:

• branches/2937_SymReg_AnalyticalQuotient/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/TreeToAutoDiffTermConverter.cs (modified) (1 diff)

branches/2937_SymReg_AnalyticalQuotient/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/TreeToAutoDiffTermConverter.cs

@@ -212 +212 @@
         if (terms.Count == 1) return 1.0 / terms[0];
         else return terms.Aggregate((a, b) => new AutoDiff.Product(a, 1.0 / b));
+      }
+      if(node.Symbol is AnalyticalQuotient) {
+        var x1 = ConvertToAutoDiff(node.GetSubtree(0));
+        var x2 = ConvertToAutoDiff(node.GetSubtree(1));
+        return x1 / (TermBuilder.Power(1 + x2 * x2, 0.5));
       }
       if (node.Symbol is Logarithm) {