Pi Directory

David H. Bailey
Update: 8 Jun 2011


Press articles on pi, most recent listed first:

  1. Linda Vu, "Supercomputers Crack Sixty-Trillionth Binary Digit of Pi-Squared," Dept. of Energy Energyblog, 28 Apr 2011, available at Online article.
  2. Elizabeth Landau, "On Pi Day, one number 'reeks of mystery'," CNN, 12 Mar 2010, available at Online article.
  3. Erica Klarreich, "Springfield theory: mathematical references abound on The Simpsons," Science News, 10 Jun 2006, available at Online article.
    See also item #4 below for the fax mentioned in this article.
  4. Ivars Peterson, "Quilting Pi," Science News, 6 May 2006, available at Online article.
  5. John Markoff, "14,159,265 New Slices of Rich Technology," New York Times,19 Aug 2005, available at Online article.
  6. June Kronholz, "If Pious Revelry Gets You Down, Calculate the Joys of Pi Day, Wall Street Journal, 15 Mar 2005, available at Online article.
  7. Erica Klarreich, "Math Lab: Computer experiments are transforming mathematics," Science News, vol. 165, 24 Apr 2004, available at Online article
  8. W. Wayt Gibbs, "A Digital Slice of Pi: A New Way to Do Pure Math: Experimentally, Scientific American, May 2003, pg. 23, available at Online article
  9. Ivars Peterson, "Pi a la Mode," Science News, 1 Sep 2001, available at Online article.
  10. Charles Seife, "Randomly Distributed Slices of Pi," Science, vol. 293, 3 Aug 2001, pg. 793, availabe at Online article.
  11. Ivars Peterson, "Pick a Digits, Any Digit," Science News Online, 28 Feb 1998, available at Online article.

Other general-interest items related to pi:

  1. LBNL "wonder" website: Online article
  2. Online pi search tool (see if your name or a hexadecimal string occurs in the first four billion binary digits of pi): http://pisearch.lbl.gov
  3. David Anderson's decimal pi search facility: http://www.angio.net/pi/piquery
  4. Fax to DHB from "The Simpsons" TV show: PDF.
    Note: The 40,000th digit of pi was provided to the show by DHB, and this was aired in the show on May 6, 1993 -- search for "Marge in Chains" on the page HTML.
    Note also that the Jacqueline Atkins, sender of the fax, is listed as "Assistant to the Producers" for The Simpsons for 1992-2002: HTML.
    In particular, Atkins is listed in the credits for the specific episode in question: HTML.
  5. Yasumasa Kanada's pi site: HTML

Technical papers on pi:

  1. David H. Bailey, Jonathan M. Borwein, Peter B. Borwein and Simon Plouffe, "The Quest for Pi," Mathematical Intelligencer, vol. 19, no. 1 (Jan 1997), pg. 50-57. PDF.
  2. David H. Bailey, Jonathan M. Borwein, Andrew Mattingly and Glenn Wightwick, "The Computation of Previously Inaccessible Digits of Pi^2 and Catalan's Constant," Notices of the American Mathematical Society, to appear, 11 Apr 2011. PDF.
  3. Jonathan Borwein, "The Life of Pi: From Archimedes to Eniac and Beyond," manuscript, Mar 2010, Article PDF | Presentation PDF.
  4. David H. Bailey, "The BBP Algorithm for Pi," manuscript, Sep 2006. PDF.
  5. David H. Bailey, "A Compendium of BBP-Type Formulas for Mathematical Constants," manuscript, Feb 2011. PDF.
  6. Fortran-90 and C programs implementing the BBP pi algorithm: BBP computer codes.
  7. David H. Bailey, Peter B. Borwein and Simon Plouffe, "On the Rapid Computation of Various Polylogarithmic Constants" (original paper of the BBP formula and algorithm), Mathematics of Computation, vol. 66, no. 218 (Apr 1997), pg. 903-913. PDF.
  8. Daisuke Takahasi, "Parallel Implementation of Multiple-Precision Arithmetic and 1,649,267,440,000 Decimal Digits of Pi Calculation," 3 Apr 2009, available at Online article.
  9. Alexander Yee and Shigeru Kondo, "5 Trillion Digits of Pi -- New World Record," 7 Mar 2011, available at HTML.