Math fanatics from all around the world and everyone else who just loves ancient Greek pi (or pie) celebrate on March 14.

March 14 — a day you’re more likely than most others to eat — or throw — a pie and get a reduced price on your pizza. It’s ...

Happy Pi Day! The special day is celebrated around the world on March 14 in honor of the Greek letter Pi, which is also the ...

Pi Day celebrates curiosity, creativity, and, let’s face it, carbs! Indulge in pies, explore math trivia, or bake ...

Pi belongs to a huge mathematical group called irrational numbers, which go on forever and cannot be written as fractions. Scientists have calculated pi to 105 trillion digits, although most of us are ...