1. <*character*> The greek lower-case letter P.

2. <*mathematics*> The mathematical constant that is the
circumference of a circle divided by its diameter. Pi is written
as the greek character pi.

Some have suggested that pi is the wrong choice and a better
constant to describe the geometry of circles would have been 2*pi,
for which they have proposed the name tau. Most practising
mathematicians think this is silly. The xkcd comic strip
*proposed* a compromise between pi and
tau, namely 1.5*pi or "pau".

Last updated: 2013-12-09

Try this search on Wikipedia, OneLook, Google

**Nearby terms:**
Physical Transport Network « Physics Analysis Workbench « PI « **pi** » PIC » pi-calculus » Pick BASIC

Loading

Copyright Denis Howe 1985