Simon Plouffe

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Simon Plouffe (born June 11, 1956, Saint-Jovite, Quebec) is a mathematician who discovered the Bailey–Borwein–Plouffe formula (BBP algorithm) which permits the computation of the nth binary digit of π, in 1995.[1][2][3]

He co-authored 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 pi by reciting 4096 digits, a record which stood until 1977.[4]

His Inverter is a web site that contains 11.3 billion[5][dead link] mathematical constants as of August 15, 2017.[6]

See also[edit]


  1. ^ Works by Simon Plouffe at Project Gutenberg; accessed March 23, 2015.
  2. ^ BBP algorithm,; accessed March 23, 2015.
  3. ^ The story behind a formula for Pi,; accessed June 23, 2003
  4. ^ David H. Bailey. (September 8, 2006), The BBP Algorithm for Pi (PDF), retrieved March 23, 2015
  5. ^ "11.3 billion constants at 41 digits of precision".
  6. ^ Plouffe works,; accessed March 23, 2015.

External links[edit]