From 32f23dad4af277bcba608884a2d77a0e1bbada9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Kn=C3=BCttel?= <daniel.knuettel@daknuett.eu>
Date: Wed, 24 Oct 2018 17:48:09 +0200
Subject: [PATCH] Added some info about where I found the pi approximation

---
 ex_01_03.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ex_01_03.py b/ex_01_03.py
index d0e1b46..2c56197 100644
--- a/ex_01_03.py
+++ b/ex_01_03.py
@@ -3,6 +3,9 @@
 import math
 
 def bailey_borwein_plouffe_pi(n):
+	"""
+	See https://en.wikipedia.org/wiki/Approximations_of_%CF%80#Efficient_methods
+	"""
 	result = 0
 	for k in range(n):
 		result += (1/16)**k * ( 4/(8*k + 1) - 2/(8*k + 4) - 1/(8*k + 5) - 1/(8*k + 6))