Tim is an Australian Senior Editor based in Germany who has been passionate about video games since he first picked up a PlayStation 1 controller to play Crash Bandicoot as a kid. He started out with ...

Once a century, a very special day comes along. That day is today — 9/16/25. Pi Day (3/14) often comes with sweet treats; Square Root Day (4/4/16 or 5/5/25, for example) has a certain numerical rhyme.

Originally defined as the ratio between the circumference of a circle and its diameter, pi — written as the Greek letter π — appears throughout mathematics, including in areas that are completely ...