using System;

namespace RecursionTest
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]			
		static void Main(string[] args)
		{
			Console.WriteLine("Input a double value: ");
			double x = double.Parse(Console.ReadLine());

			Console.WriteLine("Input an integer: ");
			int n = int.Parse(Console.ReadLine());

			Console.WriteLine("Power is {0:F6}", power(x,n));
			Console.WriteLine("Power using math library is {0:F6}", Math.Pow(x,n));

		}
		static public double power(double x, int n)
		{
			if(n==0)
				return 1;
			else
				return x * power(x, n-1);
		}
	}
}