Pi Directory

David H. Bailey
Update: 2003-06-03


  • Scientific American article: pg. 23 | pg. 24
  • Scientific American website article: article
  • LBNL "wonder" website LBNL0-wonder
  • A web site that permits one to search the first four billion binary digits of pi: http://pi.nersc.gov
  • The pi digit-calculating algorithm: Algorithm.
  • Fortran-90 and C programs implementing this algorithm: Fortran | C.
  • A 1998 Science News article describing the discovery of the new pi formula: Science News 1998.
  • An article in Nature Online on the randomness paper (2 Aug 2001): Nature.
  • An article in Science (3 Aug 2001, pg. 793) on the randomness paper: Science-HTML | Science-PDF.
  • An article in Science News (1 Sep 2001, pg. 136) on the randomness paper: Science News 2001.
  • A paper giving historical background on the computation of pi, from ancient times leading up to the new pi formula: PostScript | PDF.
  • The original technical paper that presented the new pi formula is PostScript | PDF.
  • The randomness paper, as it appeared in Experimental Mathematics: PostScript | PDF.
  • The normality paper is available here: PostScript | PDF
  • Jonathan Borwein's pi site is here: JMB's pi site