C# Babylonian Method – SQRT()

C# implementation of Babylonian Method – method to calculate square root of positive numbers.

IN
3
0.0000000001
OUT
sqrt(3) = 0.3
sqrt(3) = 5.15
sqrt(3) = 2.86626213592233
sqrt(3) = 1.9564607317769
sqrt(3) = 1.74492093914502
sqrt(3) = 1.73209827111954
sqrt(3) = 1.73205080821918

using System;

// ? 2018 TheFlyingKeyboard and released under MIT License 
// theflyingkeyboard.net
namespace BabylonianMethod
{
    class Program
    {
        static void Main(string[] args)
        {
            double number = 0.0;
            double precision = 0.0;

            Console.WriteLine("Enter number to square root");
            number = Convert.ToDouble(Console.ReadLine());

            Console.WriteLine("Enter precision");
            precision = Convert.ToDouble(Console.ReadLine());

            if (number < 0)
            {
                Console.WriteLine("Number must be >= 0");
                return;
            }

            if (number == 0)
            {
                Console.WriteLine("sqrt(0) = 0");
                return;
            }

            double x = number / 10;
            double y = number / x;

            do
            {
                Console.WriteLine("sqrt(" + number + ") = " + x);
                x = (x + y) / 2;
                y = number / x;
            } while (x - y > precision);

            Console.ReadKey();
        }
    }
}