# Pi (disambiguation)

From Citizendium

(Redirected from Pi)

*This disambiguation page lists articles associated with the same or a similar 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]}