using uCalcSoftware; var uc = new uCalc(); var VariableX = uc.DefineVariable("x"); var Expression = "x^2 * 10"; // Replace this with your expression Console.WriteLine("--- Efficient: Parse() once, then Evaluate() in a loop ---"); var ParsedExpr = uc.Parse(Expression); for (double x = 1; x <= 10; x++) { VariableX.Value(x); Console.WriteLine(ParsedExpr.Evaluate()); } ParsedExpr.Release(); VariableX.Release();