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 ...

Every year on March 14, math lovers and pie enthusiasts come together to celebrate Pi Day. The date (3/14) matches the famous mathematical constant Pi (3.14), which represents the ratio of a circle’s ...

Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its diameter and equals 3.14... Schools and museums often plan events to ...