pi.py

import time
from math import sqrt

#START
n = int(input("Nombre d'itérations?"))

m = input("Méthode (l/e)?")
start_time = time.time()

if(m.lower() == "l"):
    x = -3
    pi = 1
    
    for i in range(0, n):
        pi += 1/x
    
        x *= -1
        if(x < 0):
            x -= 2
        else:
            x += 2
            
    print(pi * 4)
else:
    x = 1
    pi = 1

    for i in range(0, n):
        x += 1
        pi += 1/(x**2)

    print(sqrt(pi * 6))

print("--- %s seconds ---" % (time.time() - start_time))