Pi

Pi is a mathematical concept related to circles, geometry, and probably more. -
 * Subpages

- Notice: Pi/Real cosine function/Definition and Pi/Zero of cosine/Introduction/Section are two subpages to Pi that should not be deleted because they are transclusions to another learning resource. Please do not delete this page because it might help "protect" the subpages.

Wikipedia

 * Pi
 * Pi (Category)
 * Irrational number
 * Approximations of π
 * List of topics related to π
 * List of formulae involving π
 * A History of Pi
 * Turn_(angle)#Tau_proposals
 * Six nines in pi
 * Proof that π is irrational

External

 * A Brief History of Pi (π)
 * Pi is magic
 * The History of Pi
 * pi to 10,000 digits
 * Baylor Math Chair Explains Magic, Mystery of π (Pi)
 * Are there any practical applications of pi, aside from calculating the area or circumference of a circle?
 * Pi and the Circumference of a Circle
 * Our endless fascination with pi

Discussion questions

 * What are useful applications of pi in engineering or science?
 * How is pi useful in computer science?