Exemplo n.º 1
0
        private Function CalculateAnalyticDerivative()
        {
            ExpressionTree diffTree = AnalyticDifferentiator.Differentiate(_expressionTree, _expressionTree.Variables[0]);

            switch (diffTree.Variables.Length)
            {
            case 0:
                return(new Constant(diffTree.ToString()));

            case 1:
                return(new Explicit2DFunction(diffTree));

            default:
                throw new InvalidOperationException();
            }
        }
Exemplo n.º 2
0
        private Function CalculateAnalyticDerivative()
        {
            string formula =
                String.Format("-(({0})/({1}))",
                              AnalyticDifferentiator.Differentiate(_expressionTree, _expressionTree.Variables[0]),
                              AnalyticDifferentiator.Differentiate(_expressionTree, _expressionTree.Variables[1]));

            ExpressionTree diffTree = new ExpressionTree(formula);

            switch (diffTree.Variables.Length)
            {
            case 0:
                return(new Constant(diffTree.ToString()));

            case 1:
                return(new Explicit2DFunction(diffTree.ToString()));

            case 2:
                return(new Implicit2DFunction(diffTree.ToString()));

            default:
                throw new InvalidOperationException();
            }
        }