Quote:
Originally Posted by artdutra04
Ironically I came across this thread at 1:59 am. 
Happy 4 - 4/3 + 4/5 - 4/7 + 4/9 - 4/11 + 4/13 ... 4/infinity day*.
* There are better and more efficient series for finding pi, but this is the easiest to memorize. |
I never remembered it as that. I remember it as
4(summation(from x=-inf, to inf, ((-1)^x)/(2x+1)))
(Yes, Infact, I am a programmer...)