March 14 is celebrated as both Pi Day and Pie Day. Pi Day honors the mathematical constant π (pi), a symbol of the relationship between a circle's circumference and diameter, while Pie Day is a fun ...

Pi isn’t just a term you see in math problems. It’s a special number with its own unique day. Pi Day is celebrated every year on March 14 because the date aligns with the first three digits of pi – ...

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 ...

On March 14, math classes across the country will celebrate Pi Day—a national holiday in honor of the mathematical constant pi, which represents the ratio of a circle’s circumference to its diameter ...