问题
I am new to this platform and not sure how to write it as code. And I’ve tried doing this question different ways but my value of pi is 3.414 so I am not sure where I am going wrong.
from math import sqrt
root = sqrt(2)
denominator = sqrt(2 + root)
while 2 * (2 / sqrt(2 + denominator) > 1):
denominator *= denominator
pi = denominator
print("Approximation of pi: %s" % (round(pi, 3)))
回答1:
What about something like (looks more clear to me):
from math import sqrt
root = 2*(2/sqrt(2))
denominator = sqrt(2)
pi = root
while 2 / sqrt(2 + denominator) > 1:
pi = pi * 2 / sqrt(2 + denominator)
denominator = sqrt(2 + denominator)
print("Approximation of pi: %s" % (round(pi, 3)))
来源：https://stackoverflow.com/questions/60449409/calculating-the-value-of-pi-using-a-while-loop-in-python-v3