求解，用二分法求根
import math x = input(‘please input a number’) x = float(x) a = math.sqrt(x) b = math.ceil(a) d=float(b) low=0 high=float(d) c = (high+low)/2 x=0 while x<=20: if a>c: high=d,low=c c=(high+low)/2 x=x+1 if x==20: print(low,high)
elif a==c: print(c) else: high=c c = (high + low) / 2 x=x+1 if x==20: print(low,high)为什么迭代错误
