Sách nói: First Fifty Digits of Pi

56 flavors of Pi proudly produced by LibriVox volunteers to celebrate Pi Day, 2008. (3/14) Don't worry, you don't have to listen to an infinite string of numbers: each reader presents just the first 50 digits in styles of their own choosing.

In light of the spirit of this occasion (and the might of our spirited community), this LibriVox offering makes a gentle exception to the policy of faithfully presenting just the text. This is the real Pi, but served up with a side of sillies -- it's Pi a la volunteer. (Summary by Cori Samuel and Anita Roy Dobbs)