Today, our Facebook feeds will be peppered with references to Pi Day, a day of celebration that has long been acknowledged by math fans and which Congress made an official holiday in 2009. Every ...

Thursday marks Pi Day, otherwise known as 3.14, which marks the ratio of a circle's circumference to its diameter. While the average citizen can easily remember the 3.14 ratio, the exact ratio ...

One of the most prolific numbers in mathematical history will once again be celebrated on its special day. This year, though, it comes with some twists that won’t be seen again for a century. Pi Day, ...