Pi belongs to a huge mathematical group called irrational numbers, which go on forever and cannot be written as fractions.

WEST PALM BEACH, Fla. (AP) — Math enthusiasts around the world, from college students to rocket scientists, celebrate Pi Day, ...

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 ...

Each year, on March 14, it's become traditional for numerophiles and mathematicians to pause and reflect on the most famous ...

March 14 marks National Pi Day, a celebration of the mathematical constant pi, represented by the Greek letter π, which is ...

This year, though, it comes with some twists that won’t be seen again for a century. Pi Day, celebrated on March 14 (3/14), ...

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 ...

Mathematician Dr. Steven Strogatz breaks down the history of the math concept and brings it full circle to recent science.

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

There's nothing irrational about enjoying the taste of pie while doing a fun math exercise in honor of one of the most famous ...

This Thursday and Friday, March 13 and 14, area restaurants are honoring 313 Day and Pi Day with a few special deals.