c#用牛顿法计算根号下2的值

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

namespace 牛顿法计算根号下2的值
{
    class Program
    {
        static void Main(string[] args)
        {
            double a = 0, b = 2, t = 0;
            while (b - a > 0.0000001)
            {
                t = (a + b) / 2;
                if (t * t - 2 == 0)
                {
                    Console.WriteLine(t);
                    break;
                }
                else if ((t * t - 2) > 0)
                {
                    b = t;
                    Console.WriteLine(t * t - 2);
                }
                else
                {
                    a = t;
                    Console.WriteLine(t * t - 2);
                }
            }
            Console.WriteLine("sqt(2)={0}",t);
        }
    }
}

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