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

There’s a formula for pi, so why not for pie (pizza pie)? Pizza–of which the round kind has an area of pi times radius squared–is among the world’s most beloved foods. Yet what constitutes pizza ...

Uncover the surprising connection between Ramanujan's pi formulas and the universe. Learn how his century-old math helps explain turbulence, black holes, and more.

Every year, math nerds and dessert enthusiasts unite to celebrate Pi Day on March 14, a date whose digits represent the first ...

While building a simpler model for particle interactions, scientists made a sleek new pi. Representations of pi help scientists use values close to real life without storing a million digits. The ...

Which brings us to a titillating quote by American engineer and author Paul J. Nahin: “If π weren’t around, there would be no round pies.” ...

Pi Day is upon us again, for those who note today’s date in the format 3/14 (March 14). But rather than talk about Pi Day itself, as I did last year, this year I want to talk about Pi and mathematical ...

Come spring, everyone's a joker about math. That's because every March 14 — 3.14, that is — is Pi Day, so named for the set of numerals that make up its date. Sure, pi is technically the ratio of the ...