TITLE: I found a new way of calculating pi,is that a great deal?
QUESTION [20 upvotes]: I am a 15 year old teen and fond of mathematics.  I always try to prove mathematical theories and I tried to find how to get pi using an algorithm.  Then I found out a way and made an algorithm and inserted it in an Excel sheet and it gave out the first 15 digits after the decimal sign.  I just want to know if this is a great deal?

REPLY [3 votes]: I would probably start by trying to determine if your formula is a rediscovery of a known formula. Wikipedia seems quite enthusiastic about this question.