using uCalcSoftware; var uc = new uCalc(); Console.WriteLine(uc.DataTypeOf("2 * (3 + 4)").IsCompound); Console.WriteLine(uc.DataTypeOf(" 'Hello ' + 'world!' ").IsCompound); Console.WriteLine(uc.DataTypeOf("3 + 4 * #i").IsCompound); Console.WriteLine(uc.DataTypeOf(BuiltInType.String).IsCompound); Console.WriteLine(uc.DataTypeOf("Bool").IsCompound);