using uCalcSoftware; var uc = new uCalc(); // The head, body, callback, and callback:u tags should only be used when the code contains a callback. // There are two types of callbacks. callback:u is for error handling, while callback is for expression // functions and operators. They both close with /callback. static void MyErrorHandler(Handle_uCalc h) { var uc = new uCalc(h); Console.WriteLine("An error has occurred!"); Console.WriteLine($"Error #: {(int)uc.Error.Code}"); Console.WriteLine($"Error Message: {uc.Error.Message}"); Console.WriteLine($"Error Symbol: {uc.Error.Symbol}"); Console.WriteLine($"Error Location: {uc.Error.Location}"); Console.WriteLine($"Error Expression: {uc.Error.Expression}"); } uc.Error.AddHandler(MyErrorHandler); Console.WriteLine(uc.EvalStr("123+")); Console.WriteLine(""); uc.Error.TrapOnDivideByZero = true; Console.WriteLine(uc.EvalStr("5/0")); // Note: The head and body tags do NOT come in pairs. Those tags separate sections of code.