nix_nevermind wrote in pi

Pi formula

Hello, pi! I developed a pi formula a while back, in fulfillment of a long-term obsession. This is my sole mathematical achievement so far. I will post the formula here:

Pi = limn->∞ 2n+1( 2( 1 - Qn/Rn ) )½,

where

Rn = 21-2-n; Q1 = 1; Qn+1 = (Qn + Rn)½.

I will edit this post to include the derivation later, if I feel like doing that. Further details can be found in my post in the March 2009 mathematics community archive here.