basic_tools:pi

# Pi / $\pi$

## Intuitive

Explanations in this section should contain no formulas, but instead colloquial things like you would hear them during a coffee break or at a cocktail party.

## Abstract

The motto in this section is: the higher the level of abstraction, the better.

## Why is it interesting?

Pi is the ratio between circumference and diameter shared by all circles. It is a fundamental ratio inherent in all circles and therefore impacts any calculation of circumference, area, volume, and surface area for circles, spheres, cylinders, and so on. Pi is important and shows all circles are related, not to mention the trigonometric functions derived from circles (sin, cos, tan).

An Intuitive Guide To Exponential Functions & e by Kalid Azad