public class Main {      static double eps = 1e-7;      public static void main(String[] args){          double l = 2,r = 3,mid;          while(l+eps < r){              mid = (l+r)/2;              if(Math.pow(mid,mid) < 10)                  l = mid;              else                  r = mid;          }          System.out.printf("%.6f\n",l);      }  }