What you’ll get is a pretty good estimate of the irrational number pi (3.14159...). To celebrate Pi Day this year, here are three ways to estimate pi using random chance that you can try out at home.

Divide any circle’s circumference by its diameter and you get pi. But what, exactly, are its digits? Measuring physical ...

Every year on Pi Day, we have a reason to celebrate one of math’s most famous symbols. But this year we speak to someone who has captured it in song.