// Double just means float
        public static void Multiply()
        {
            double x = 0;
            double y = 0;
            double z = 0;
            
            Console.WriteLine("Type the first number to mutliply: ");
            if (Console.ReadLine() == "pi")
                x = Math.PI;
            else if (Console.ReadLine() == "e")
                x = Math.E; 
            else
                x = Double.Parse(Console.ReadLine());

            Console.WriteLine("Type the second number to mutliply: ");
            if (Console.ReadLine() == "pi")
                y = Math.PI;
            else if (Console.ReadLine() == "e")
                y = Math.E;
            else
                y = Double.Parse(Console.ReadLine());

            Console.WriteLine("Type the third number to mutliply: ");
            if (Console.ReadLine() == "pi")
                z = Math.PI;
            else if (Console.ReadLine() == "e")
                z = Math.E;
            else
                z = Double.Parse(Console.ReadLine());

            double ans = (x * y * z);

            Console.WriteLine("{0} * {1} * {2} = {3}", x, y, z, ans);

            // Simple function that asks to repeat...
            Modes.AskToRepeat(3);
        }