Science: Math: Recreations: Specific_Numbers: Pi

 Calculation  (22) Digits  (19)

 Pi - The Movie@  (8) Poetry  (5)

Ancient Pi: Knowers of the Universe
The concept of pi refers to the constant ratio of the diameter:circumference of any circle; irrespective of the number of degrees contained within that circle. An article in the "Science in Ancient Artwork"-Series by Charles William Johnson.

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.

Explains what the constant is and a brief history. Includes resource links.

Buffon's Needle
An analysis of its relation to Pi and a simulation by George Reese.

Calculating Pi
An open source endeavor for the calculation of this constant. Describes the project, the implemented algorithms for calculatinon and software downloads.

A Common Book of Pi
Includes a brief history, a page with different formulas and a list of references.

The Constant Pi
History, formulae, algorithms, programs, records of computation, and references.

Dale's Pi Page
Includes history of Pi, songs and jokes, poems, news and the first 1,000,000 digits.

Earth Mysteries : Notes on Pi
An introduction to the number Pi and its history.

Elias' Pi Page
Includes Pi in the Binary number system, Pi as a sound file and Pi shown in different images.

Fun With Pi
A Topica email list. Archives readable by anyone.

Harry Smith's Brief History of Pi Calculations
Brief history of Pi calculations from the ancient times to present day.

History and Philosophy of Pi
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 Pi?
Extracting the digits of pi from the SlOka

How Stuff Works: Pi
Animated graphic helps to explain Pi and the different ways of calculating Pi, with some related links.

Indiana Pi Bill
Bill proposing new value of pi.

The Joy of Pi
Book, digits, links, facts, and quote.

Land of Pi

Lucy Scale Developments
Pitch, Pi, and other musical paradoxes.

The Magic Piworld
Provides generated pictures and personal signs out of digits of Pi. Also a Picture Gallery, PiSign, PiPhonie.

A New Approach to the Universal Constant "pi"
A text that tries to prove that pi is 3.1416 exactly.

Paul's Page of Pi
Includes introduction on why people would want to calculate Pi, four methods for calculating it, over 8000 digits, poems and music.

Pi 3.1416
Mathematics as the language of nature.

Pi Approximation Day
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 Memorama
Includes a program that teaches Pi for the Mac, a page on why people learn to recite Pi and pages on how to memorise Pi.

The Pi Pages
Information on Pi, its history, its future, and the people involved in its calculations.

Pi Patterns
Images and illustrations created by using the digits of the circle constant.

Pi, Pi, Mathematical Pi
Parody of the song "Bye Bye Miss American Pie" elaborating on the history of pi.

The Pi Song
Written by Joel Gilmore. (Sung to the tune of Supercalifragilisticexpialidocious.)

Pi Through the Ages
History.

The Pi Trivia Game
History, math, and physics questions.

Pi World Ranking List
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.

Pi-Dye : Pi and Math T-Shirts and Gifts
Pi and math gifts, t-shirts, clocks, and mugs. Includes some pi news.

The Ridiculously Enhanced Pi Page
Information on links for Pi Day.

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
Club and information.

The Uselessness of Pi and its Irrational Friends
Clubs, links, memorizing technique, records, art, and programs.