from random import random
from time import perf_counter
DARTS=1000*1000
hits=0.0
start=perf_counter()
for i in range(1,DARTS+1):
x,y=random(),random()
dist=pow(x**2+y**2,0.5)
if dist<=1.0:
hits=hits+1
pi=4*(hits/DARTS)
print("圆周率值是:{}".format(pi))
print("运行时间是:{:2f}s".format(perf_counter()-start))
pi=0
N=100
for k in range(N):
pi+=1/pow(16,k)*(
4/(8*k+1)-
2/(8*k+4)-
1/(8*k+5)-
1/(8*k+6)
)
print("圆周率是:{}".format(pi))