March 14 is celebrated as Pi Day because the date, when written as 3/14, matches the start of the decimal expansion 3.14159… of the most famous mathematical constant. By itself, pi is simply a number, ...

Saturday's Google Doodle celebrates everyone's favorite math holiday, Pi Day. The Doodle features an animated illustration of how the mathematical constant is us ...

Pi Day, celebrated each year on March 14 (3.14), honors the mathematical constant π, which begins with the digits 3.14.

WASHINGTON (7News) — It's Friday, March 14 —3/14, the day that every math nerd eagerly anticipates each year. Known around the world as "Pi Day," it’s a time to celebrate one of mathematics' most ...

Pi Day is celebrated every year on March 14, honouring the significance of the mathematical constant π and its applications ...

Every year on March 14, people around the world celebrate Pi Day, a day dedicated to the mathematical constant π (pi) ...