Changeset 18143 for trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters

Timestamp:

12/16/21 11:26:51 (3 years ago)

Author:

chaider

Message:

#3140 merged branch into trunk

Location:

trunk

Files:

• . (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/DerivativeCalculator.cs (modified) (1 diff)

trunk/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/Converters/DerivativeCalculator.cs

@@ -156 +156 @@
           var newPower = (ISymbolicExpressionTreeNode)branch.Clone();
           var f = (ISymbolicExpressionTreeNode)newPower.GetSubtree(0).Clone();
-          var newExponent = (INumericTreeNode)numberSy.CreateTreeNode();
-          newExponent.Value = ((INumericTreeNode)newPower.GetSubtree(1)).Value - 1;
+          var newExponent = (NumberTreeNode)numberSy.CreateTreeNode();
+          newExponent.Value = ((NumberTreeNode)newPower.GetSubtree(1)).Value - 1;
           return Product(Product(CreateNumber(exponent.Value), newPower), Derive(f, variableName));
         } else throw new NotSupportedException("Cannot derive non-integer powers");