| Directory > Science > Math > Recreations > Specific Numbers > Pi Pi Land
Fun activities, a Pi trivia game and a Trainer for digit memorization. Pi poetry, artwork, and
photography, calculations, digits and book reviews.
http://www.eveandersson.com/pi/
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Fabrice Bellard's PI page
Showcases digit extraction and FFT multiplication algorithms.
http://fabrice.bellard.free.fr/pi/
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Ask Dr. Math: About Pi
Explains what the constant is and a brief history. Includes resource links.
http://mathforum.org/dr.math/faq/faq.pi.html
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Elementary Proof that Pi is Irrational
Presents a proof that pi is irrational based on its Gregory series expansion.
http://pi.coolissues.com/pi.htm
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Exp(Pi.Sqrt(n)) Page
Some of these values are very close to integers. A prize is offered for an explanation. Some of
the contributions are included.
http://www.cacr.caltech.edu/~roy/upi/episqrtn.html
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A New Approach to the Universal Constant "pi"
A text that tries to prove that pi is 3.1416 exactly.
http://alkyone.com/mak-pi-gr/en/
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Archimedes and the Computation of Pi
A page that contains links information on Archimedes and an interactive applet that illustrates how
he estimated Pi.
http://www.math.utah.edu/~alfeld/Archimedes/Archimedes.html
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Slice of Pi Anyone?
Includes some history, facts and related links.
http://www.johnshepler.com/articles/piday.html
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Pi Patterns
Images and illustrations created by using the digits of the circle constant.
http://www.antigravitypress.com/Math/pi/
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Elias' Pi Page
Includes Pi in the Binary number system, Pi as a sound file and Pi shown in different images.
http://www.befria.nu/elias/pi/
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Pi Approximation Day
22/7 - that is, July 22. For the past few years, people at Chalmers University have celebrated
it.
http://www.dtek.chalmers.se/~d3rebas/humor/piapprox.html
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The Pi Pages
Information on Pi, its history, its future, and the people involved in its calculations.
http://www.cecm.sfu.ca/pi/
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Calculating Pi
An open source endeavor for the calculation of this constant. Describes the project, the
implemented algorithms for calculatinon and software downloads.
http://projectpi.sourceforge.net/
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Archimedes' Constant
Information about the constant and some mathematical discussion of the effects.
http://pauillac.inria.fr/algo/bsolve/constant/pi/pi.html
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Lucy Scale Developments
Pitch, Pi, and other musical paradoxes.
http://www.harmonics.com/lucy/ltindex.html
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Ask Dr. Math - Pi
Dr Math answers over 60 questions submitted by people about Pi including questions relating to the
bible's relationship to it and it's relationship to trigonometry.
http://mathforum.org/dr.math/tocs/pi.middle.html
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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.
http://www.earthmatrix.com/ancient/pi.htm
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The Magic Piworld
Provides generated pictures and personal signs out of digits of Pi. Also a Picture Gallery, PiSign,
PiPhonie.
http://www.piworld.de/piworld/mpw_home.htm
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Is Pi normal?
An article by Stan Wagon about the idea of normality, first introduced by E. Borel in 1909, is an
attempt to formalize the notion of a real number being random.
http://www.astro.univie.ac.at/~wasi/PI/pi_normal.html
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Randomly Distributed Slices of pi
An article by Charles Seife about how mathematicians slowly circle in on a proof that pi's
unpredictable digits really are as random as they seem.
http://www.nersc.gov/~dhbailey/pi-science.html
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Science News Online: Pi à la Mode
An article describing a potential link between two disparate mathematical fields-number theory and
chaotic dynamics-that could lead to a proof that every digit of pi occurs with the same frequency.
http://www.sciencenews.org/20010901/bob9.asp
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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.
http://www.pi-world-ranking-list.com/
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The Uselessness of Pi and its Irrational Friends
Clubs, links, memorizing technique, records, art, and programs.
http://www.go2net.com/internet/useless/useless/pi.html
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Earth Mysteries : Notes on Pi (¼ )
An introduction to the number Pi and its history.
http://witcombe.sbc.edu/earthmysteries/EMPi.html
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Greg's Page of Pi
Includes introduction to Pi, 3 pieces of Pi art and links.
http://paperpen.com/greg/pi/
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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.
http://www.escape.com/~paulg53/math/pi.html
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The Constant Pi
History, formulae, algorithms, programs, records of computation, and references.
http://numbers.computation.free.fr/Constants/Pi/pi.html
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A Common Book of Pi
Includes a brief history, a page with different formulas and a list of references.
http://personal.bgsu.edu/~carother/pi/Pi1.html
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How pi?
Extracting the digits of pi from the SlOka
http://www.geocities.com/ResearchTriangle/Facility/4118/misc/pi.html
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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.
http://briantaylor.com/Pi.htm
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Indiana Pi Bill
Bill proposing new value of pi.
http://www.urbanlegends.com/legal/indiana_pi_bill.html
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Pi Through the Ages
History.
http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pi_through_the_ages.html
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How Stuff Works: Pi
Animated graphic helps to explain Pi and the different ways of calculating Pi, with some related
links.
http://www.howstuffworks.com/pi.htm
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One Billion Digits of Pi
Ramanujan, modular equations, and approximations.
http://www.cecm.sfu.ca/organics/papers/borwein/index.html
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The Friends of Pi Club
News, club, links, and information.
http://www.astro.univie.ac.at/~wasi/PI/pi_club.html
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Chahm's Pi Page
Discusses the constant with questions, digits, and links.
http://students.washington.edu/~chahm/pi/pi.html
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Your Piece of the Pi
This site describes pi's history, characteristics, and application. It also includes a distributed
computing application for finding a large number of digits.
http://library.thinkquest.org/C0110195
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Dale's Pi Page
Includes history of Pi, songs and jokes, poems, news and the first 1,000,000 digits.
http://www.geocities.com/SiliconValley/Pines/5945/
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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.
http://www.ac.wwu.edu/~mnaylor/pi.html
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A Tribute to Pi
Club and information.
http://www.acc.umu.se/~olletg/pi/tribute.html
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The Web Page Dedicated to Pi
Information, 120,000 digits, links, and jokes.
http://www.wpdpi.com
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Pieter's Pi Memorizing Aids
Memorizing aids.
http://web.inter.nl.net/hcc/J.Moree/pirecall.htm
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A Slice Of Pi
Digits, chronology, expressions, other constants, maths books, fractals, Rolling Stones lyrics, and
computer games.
http://www.yxq98.ukgateway.net/
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pi Mathematics
Teacher resources, history, activities, and information.
http://www.ncsa.uiuc.edu:80/edu/RSE/RSEorange/buttons.html
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The Pi Trivia Game
History, math, and physics questions.
http://eveander.com/trivia/
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The Ridiculously Enhanced Pi Page
Information on links for Pi Day.
http://www.exploratorium.edu/learning_studio/pi/
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The Joy of Pi
Book, digits, links, facts, and quote.
http://www.joyofpi.com/
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