Add Yahoo as a preferred source to see more of our stories on Google. What is pi? Each year, on March 14, it's become traditional for numerophiles and mathematicians to pause and reflect on the most ...

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 all in celebration of pi (Greek letter π), the mathematical constant and ...

Every year on March 14, classrooms, universities and research institutions across the world turn their attention to a subject that quietly shapes modern civilisation, mathematics. The date is observed ...

WEST PALM BEACH, Fla. (AP) — Math enthusiasts around the world, from college students to rocket scientists, celebrate Pi Day, which is March 14 or 3/14 — the first three digits of an infinite number ...

Pi (π) is a mathematical constant that represents the ratio of a circle's circumference to its diameter. It's an irrational number, meaning its decimal representation goes on infinitely without ...