# Directory of Pi Resources

Pi = 3.1415926535... An irrational number, a never ending yet never repeating decimal, Pi has been calculated and explored throughout history from the ancient times to the present.

## Resources in This Category

• #### A Common Book of Pi

http://personal.bgsu.edu/~carother/pi/Pi1.html
Includes a brief history, a page with different formulas and a list of references.

http://www.geom.uiuc.edu/~huberty/math5337/groupe/welcome.html
Features an historic overview of the discovery and estimate methods of pi. formula expressions, and the first 100,000 digits. Some pages use a Geometer's Sketchpad program.

• #### A Tribute to Pi

http://www.acc.umu.se/~olletg/pi/trib.htm
Club and information.

• #### Ask Dr. Math - Pi

http://mathforum.org/library/drmath/sets/mid_pi.html
Dr Math answers over 60 questions submitted by people about pi including questions on the Bible's relationship to it and its relationship to trigonometry.

http://mathforum.org/dr.math/faq/faq.pi.html
Explains what the constant is and a brief history. Includes resource links.

• #### Buffon's Needle

http://mste.illinois.edu/reese/buffon/buffon.html
An analysis of its relation to Pi and a simulation by George Reese.

• #### Calculating Pi

http://sourceforge.net/projects/projectpi/
An open source endeavor for the calculation of this constant. Describes the project, the implemented algorithms for calculation and software downloads.

• #### Elias' Pi Page

http://www.befria.nu/elias/pi/
Includes Pi in the Binary number system, Pi as a sound file and Pi shown in different images.

• #### Fun With Pi

http://lists.topica.com/lists/funwithpi@igc.topica.com/
A Topica email list. Archives readable by anyone.

• #### History and Philosophy of Pi

http://briantaylor.com/Pi.htm
Probably no symbol of infinity in mathematics has evoked as much mystery, romanticism, misconception and human interest as the number and Greek letter of Pi. Interesting facts and trivia about Pi.

• #### How Stuff Works: Pi

http://www.howstuffworks.com/pi.htm
Animated graphic helps to explain Pi and the different ways of calculating Pi, with some related links.

• #### Lucy Scale Developments

http://www.harmonics.com/lucy/ltindex.html
Pitch, Pi, and other musical paradoxes.

• #### Pi Approximation Day

http://www.rebas.se/humor/piapprox.shtml
22/7 - that is, July 22. For the past few years, people at Chalmers University have celebrated it.

• #### Pi Land

Fun activities, a Pi trivia game and a Trainer for digit memorization. Pi poetry, artwork, and photography, calculations, digits and book reviews.

• #### Pi Through the Ages

http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pi_through_the_ages.html
History.

• #### Pi World Ranking List

http://www.pi-world-ranking-list.com/
Every sport has its championship. Every sport has its world ranking list. For many who like to memorize numbers, PI is the ultimate number, and it makes sense to create a list for people to get in touch and learn where they stand in the world of memorizers.

• #### The Constant Pi

http://numbers.computation.free.fr/Constants/Pi/pi.html
History, formulae, algorithms, programs, records of computation, and references.

• #### The Joy of Pi

http://www.joyofpi.com/
Book, digits, links, facts, and quote.

• #### The Magic Piworld

http://www.piworld.de/piworld/mpw_home.htm
Provides generated pictures and personal signs out of digits of Pi. Also a Picture Gallery, PiSign, PiPhonie.

• #### The Pi Trivia Game

History, math, and physics questions.

• #### The Ridiculously Enhanced Pi Page

http://www.exploratorium.edu/pi/
Information on links for Pi Day.

## Related Categories

Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us