How many digits can you recite?
Estimate Pi by Dropping Sticks
A simulator based on one of the oldest problems in geometrical probability approximates pi.
The Mystique of Pi
An excerpt from “Professor Stewart’s Incredible Numbers.”
Pi Day Mashup
It’s Pi Day (and Einstein’s birthday). Celebrate with this mix of tributes to the telltale Greek letter that symbolizes that endless number.
How Many Digits Of Pi Do We Really Need?
Mathematician James Grime of the YouTube channel Numberphile has determined that 39 digits of pi should suffice.
Eugenia Cheng: How To Bake Pi
In her new book How to Bake Pi, mathematician Eugenia Cheng cooks up digestible math lessons on number theory to topology.
SciFri Celebrates π
This year holds an unusually special treat for enthusiasts of the constant π: March 14, 2015 approximates π not just to the usual three digits (3.14) but to five: 3.14.15.