Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

Pi

Revision as of 16:07, 20 June 2006 by Cosinator (talk | contribs) (Just added link.)

Definition

Pi is an irrational number. It is the ratio of a circle's circumference, or perimeter, to its diameter. The number pi is usually only useful when dealing with circles, spheres, and discs.

See Also

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=Pi&oldid=3500"