1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6  7 namespace 牛顿法计算根号下2的值 8 { 9     class Program10     {11         static void Main(string[] args)12         {13             double a = 0, b = 2, t = 0;14             while (b - a > 0.0000001)15             {16                 t = (a + b) / 2;17                 if (t * t - 2 == 0)18                 {19                     Console.WriteLine(t);20                     break;21                 }22                 else if ((t * t - 2) > 0)23                 {24                     b = t;25                     Console.WriteLine(t * t - 2);26                 }27                 else28                 {29                     a = t;30                     Console.WriteLine(t * t - 2);31                 }32             }33             Console.WriteLine("sqt(2)={0}",t);34         }35     }36 }

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