Pi (disambiguation)
From Citizendium, the Citizens' Compendium
This disambiguation page lists articles associated with the same title.
- pi (Greek letter) [r]: The sixteenth letter of the Greek alphabet, written as
(upper-case) and 
(lower-case). [e]
- pi (mathematical constant) [r]: Greek letter π and mathematical constant that is approximately equal to 3.14159. [e]
