C#-Code

Console.WriteLine("From which number you wanna extract the root?");
                double number = Convert.ToDouble(Console.ReadLine());
                Console.WriteLine("Which kind of root you wanna extract?");
                double root = Convert.ToDouble(Console.ReadLine());
                double exponent = 1 / root;
                double result;

                if (number >= 0)
                {
                    result = Math.Pow(number, exponent);
                    Console.WriteLine("Result:" + result.ToString());
                }
                else
                    Console.WriteLine("You can not extract a root with a negativ number ");