Simon Plouffe is a Quebec mathematician born on June 11, 1956 in Saint-Jovite, Quebec. He discovered the formula for the BBP algorithm (the Bailey–Borwein–Plouffe formula) which permits the computation of the nth binary digit of π, in 1995. Plouffe is also the co-author of the Encyclopedia of Integer Sequences, made into the web site (On-Line Encyclopedia of Integer Sequences) dedicated to integer sequences later in 1995.
In 1975, Plouffe broke the world record for memorizing digits of π by reciting 4096 digits, which stood until 1977.
Plouffe discovered an algorithm for the computation of π in any base in 1996. He has expressed regret for having shared credit for his discovery of this formula with Bailey and Borwein.[1]
Plouffe's Inverter is a web site that contains 3'932'000'000 mathematical constants as of August 3, 2010.