Happy Pi Day! It's March 14, or 3/14, matching the first three digits of π. π is one of the fundamental constants of mathematics: the ratio of a circle's circumference to its diameter. π is an ...

Archimedes determined the upper and lower range of pi by finding the perimeters of inscribed and circumscribed polygons. By doubling the number of sides of the hexagon to a 12-sided polygon, then a 24 ...

Pi is the ratio of a circle’s circumference to it’s diameter. Think of the circumference as the distance around a circle, and the diameter as the distance across it. Pi is a mathematical constant.

You might be familiar with the never-ending number π (pi), which is most relevant for studying circles. But you might not know much about the genius guy who first calculated pi: Archimedes of Syracuse ...

The famous mathematical ratio, estimated to more than 22 trillion digits (and counting), is the perfect symbol for our species’ long effort to tame infinity. By Steven Strogatz This article, ...