All about Pi (not really all about) 3.1415926535897932384626433...

What is the Memorization of Pi Called?

The memorization of Pi is called piphilology.

Coolio, this was pretty short

Ya sorry, not sorry

Thanks and Bai!

~Hayley (^__^)

What is Pi Used For in Math?

*Geometry and Trigonometry* π appears in formulae for areas and volumes of geometrical shapes based on circles, such as ellipses, spheres, cones, and tori. *Monte Carlo methods* Monte Carlo methods, which evaluate the results of multiple random trials, can be used to create approximations of π.[105] Buffon's needle is one such technique: If a needle of length ℓ is dropped n times on a surface on which parallel lines are drawn t units apart, and if x of those times it comes to rest crossing a line (x > 0), then one may approximate π based on the counts *Complex numbers and analysis* Any complex number, say z, can be expressed using a pair of real numbers. In the polar coordinate system, one number (radius or r) is used to represent z's distance from the origin of the complex plane and the other (angle or φ) to represent a counter-clockwise rotation from the positive real line as follows *There are many more.....*

What is Pi?

The number π (pi) is a mathematical constant, the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. It has been represented by the Greek letter "π" since the mid-18th century though it is also sometimes spelled out as "pi".

What Does Pi Mean?

π is commonly defined as the ratio of a circle's circumference C to its diameter. The ratio C/d is constant, regardless of the circle's size. For example, if a circle has twice the diameter of another circle it will also have twice the circumference, preserving the ratio C/d. This definition of π implicitly makes use of flat (Euclidean) geometry; although the notion of a circle can be extended to any curved (non-Euclidean) geometry, these new circles will no longer satisfy the formula π = C/d.[3] There are also other definitions of π that do not immediately involve circles at all. For example, π is twice the smallest positive x for which cos(x) equals 0.[3][4]