PI DAY Archives | Math for Grownups

Get the Party Started: Celebrate Pi Day!

If you have the kind of Facebook or Twitter newsfeed that I have, you have likely figured out that March 14, 2015 is pretty darned special. And at 9:26 a.m., there’s even more reason to celebrate. That exact time is

Happy Pi Day!

In celebration of 3-14 or Pi Day, I bring you 10 interesting facts about the number π. 1. The number π is the world’s most recognizable constant. 2. π is equal to a circle’s circumference divided by its diameter. It is approximately 3.14159, though the number never