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 = , b = , t = ;
             while (b - a > 0.0000001)
             {
                 t = (a + b) / ;
                 if (t * t -  == )
                 {
                     Console.WriteLine(t);
                     break;
                 }
                 else if ((t * t - ) > )
                 {
                     b = t;
                     Console.WriteLine(t * t - );
                 }
                 else
                 {
                     a = t;
                     Console.WriteLine(t * t - );
                 }
             }
             Console.WriteLine("sqt(2)={0}",t);
         }
     }
 }

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