It’s the most wonderful time of the year—for mathematicians, anyway. Pi Day is Saturday, March 14. The relatively new holiday is a celebration of the mathematical calculation pi, or the infinite ...

An algorithm to calculate Pi on IBM’s quantum computers honors Pi Day—and helps us understand how a quantum computer works. Ever since Archimedes hit upon a value for Pi in the third century B.C., ...

Google is marking Pi Day 2026 with a unique doodle, paying tribute to ancient Greek mathematician Archimedes and his ...

Forbes contributors publish independent expert analyses and insights. Luis E. Romero is an entrepreneur, author and speaker. The natural universe expresses itself mostly in curved shapes and motions, ...

SAN FRANCISCO -- Every March 14, mathematicians, scientists and math lovers around the world celebrate Pi Day, a commemoration of the mathematical sign Pi. That's because the date written numerically ...

This article has been updated from the original post, which appeared on March 14, 2013. March 14, when written as 3/14, represents the first three digits of pi (π), the ratio of the circumference of a ...