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

The Gazette offers audio versions of articles using Instaread. Some words may be mispronounced. Pi is the ratio of a circle’s circumference to it’s diameter. Think of the circumference as the distance ...

Google Doodle 2026: Google is marking March 14 with a special Doodle dedicated to Pi Day 2026. It's an annual shout-out to the world's most famous mathematical constant, π. Google stated it was ...

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 ...

Celebrate Pi Day and read about how this number pops up across math and science on our special Pi Day page. For more than two millennia, mathematicians have produced a growing heap of pi equations in ...

Pi, a mathematical constant denoted by the Greek letter π, is the ratio of a circle's circumference C to its diameter d: π = C/d. The circumference of a circle is, in turn, equal to 2πr, where r is ...

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 ...