using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace calc
{
    class Program
    {
        static void Main(string[] args)
        {
            double progress = Math.Sqrt(2);
            double temp = progress;
            double multiplier = 2;

            while (true)
            {
                temp = Math.Sqrt(Math.Pow(0.5 * progress, 2) + Math.Pow(1 - Math.Sqrt(1 - Math.Pow((0.5 * progress), 2)), 2));

                //wait for key before continuing
                multiplier = multiplier * 2;
                Console.WriteLine(temp*multiplier);
                Console.WriteLine("");
                Console.WriteLine(((temp*multiplier)/Math.PI)*100 + "%");
                Console.WriteLine("");
                Console.WriteLine(Math.PI);
                _ = Console.ReadKey();
                progress = temp;
                Console.Clear();
            }
        }
    }
}