pi2.py

#!/usr/bin/env python

import sys
import math

def simple(n):
    series = []

    try:
        for i in range(0, n):
            series.append( math.pow(-1, i) * (1 / (2*i + 1)) )

        result = math.fsum(series) * 4

    except Exception as e:
        return 0

    else:
        return result

def ramanujan(n):
    series = []

    try:
        for i in range(0, n):
            series.append( (math.factorial(4*i)/math.pow(math.factorial(i), 4)) * (26390 * i + 1103)/(math.pow(396, 4*i)) )

        result = (math.sqrt(8)/9801 * math.fsum(series)) * math.pow(math.pi, 2)

    except Exception as e:
        return 0
        
    else:
        return result

def main(amount):
    for i in range(1, amount + 1):
        print("{:>{}}   Simple: {:<20} Ramanujan: {:<20}".format(i, str(len(str(amount))), round(simple(i), 20), round(ramanujan(i), 20)))

main(int(sys.argv[1]))