# Mathematical Digest

### Short Summaries of Articles about Mathematics

in the Popular Press

"An enormous chunk of pi," by Ivars Peterson. *Science News*, 9 August1997, page 92.

This brief article discusses the latest work on computation of the number pi,which has an infinitely long, nonrepeating decimal expansion. Researchers inJapan have now computed pi out to 51.5 billion digits.

*--- Allyn Jackson*