Pi Approximation Day 2023 is here! On this day, we celebrate the mathematical marvel known as Pi or 3.14. Pi is an irrational number, which means it can never be written as a fraction and has no end.

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 ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...