Pi (disambiguation)
Pi (math), [math]\displaystyle{ \pi }[/math], or π, is the mathematical constant equal to a circle's circumference divided by its diameter. Template:TOCright Pi may also refer to:
Letter Pi (π)
- Pi (letter), the Greek letter
- Lowercase π:
- π (film), a 1998 film directed by Darren Aronofsky
- [math]\displaystyle{ \pi(x)\,\! }[/math] (pi function), the prime-counting function
- Pi bond
- Osmotic pressure
- A song from the Kate Bush album Aerial
- Shorthand for pion
- A men's fragrance from Givenchy
- The symbol for political life used in Boethius' Consolation of Philosophy
- Uppercase Π:
- The product symbol
- [math]\displaystyle{ \Pi(x)\,\! }[/math] (Pi function), the Gamma function when offset to coincide with the factorial
- [math]\displaystyle{ \pi(x)\,\! }[/math], the reciprocal of the Pi function
Pi as a word
- Pi (instrument)
- Pi (.hack), a fictional character from the multimedia franchise .hack//G.U.
- Pi Magazine
- Pi Recordings, a record label
- "Pi", a song from the Hard 'n Phirm album Horses and Grasses; the song ends at 3:14
- Pi, a member of Team Robo in Sega Soccer Slam
- Pi, a fictional character in the novel Life of Pi
- Pi County, county in Sichuan, China