3.14: Celebrating Pi Day

Pi Day celebrations take place, appropriately enough, on March 14. For a glimpse of activities highlighting the enduring fascination of the digits of pi (the ratio of a circle's circumference to its diameter), take a look at the Exploratorium's Web pages devoted to pi, then sample the following links to other weird and wonderful pi pages.

Celebrating pi at Winona State University, Minnesota. Photo by I. Peterson.

• Official Pi Day site
• BBC Article on Pi Day
• Pi Across America
• Brainfreeze Puzzles' 2009 Pi Day Sudoku (2008)
• Pi Day Songs
• Making a Pi Necklace
• Harvard Mathematics Department Piday
• Pi Day (Wikipedia)
• How to Celebrate Pi Day (Wiki)
• TeachPi.org
• PiDayInternational.org

Pi Day also happens to be Albert Einstein's birthday.

Pi in "Found Math" pictures.
We'll be looking for a pi day photo for 2010, so send your entries to editor@maa.org.