1. Pi - Wikipedia, The Free Encyclopedia pi or is one of the most important mathematical constants, approximately equal to 3.14159. It represents the ratio of any circle s circumference to its http://en.wikipedia.org/wiki/Pi

Pi From Wikipedia, the free encyclopedia Jump to: navigation search This article is about the mathematical constant. For the Greek letter, see pi (letter) . For other uses, see Pi (disambiguation) When a circle's diameter is 1, its circumference is π. List of numbers Irrational numbers e Binary ... Continued fraction Note that this continued fraction is not periodic. Pi or is one of the most important mathematical constants , approximately equal to 3.14159. It represents the ratio of any circle 's circumference to its diameter in Euclidean geometry , which is the same as the ratio of a circle's area to the square of its radius. Many formulas from mathematics, science , and engineering involve π. It is an irrational number , which means that it cannot be expressed as a fraction m n , where m and n are integers . Consequently its decimal representation never ends or repeats. Beyond being irrational , it is a transcendental number , which means that no finite sequence of algebraic operations on integers (powers, roots, sums, etc.) could ever produce it. Throughout the history of mathematics, much effort has been made to determine π more accurately and understand its nature; fascination with the number has even carried over into culture at large. The Greek letter π, often spelled out

2. Pi (1998) Directed by Darren Aronofsky. With Sean Gullette, Mark Margolis, Ben Shenkman. A paranoid mathematician searches for a key number that will unlock the http://www.imdb.com/Title?Pi (1998)

3. Pi -- From Wolfram MathWorld pi s digits have many interesting properties, although not very much is known about their analytic properties. Spigot (Rabinowitz and Wagon 1995; http://mathworld.wolfram.com/Pi.html

Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Less... Pi The constant pi, denoted , is a real number defined as the ratio of a circle 's circumference to its diameter It is also sometimes called Archimedes' constant or Ludolph's constant. It is equal to (Sloane's Pi's digits have many interesting properties, although not very much is known about their analytic properties. Spigot (Rabinowitz and Wagon 1995; Arndt and Haenel 2001; Borwein and Bailey 2003, pp. 140-141) and digit-extraction algorithms (the BBP formula ) are known for Pi's continued fraction is given by [3, 7, 15, 1, 292, 1, 1, 1, ...] (Sloane's ). Its Engel expansion is 1, 1, 1, 8, 8, 17, 19, 300, 1991, 2492, ... (Sloane's is known to be irrational is irrational (Wells 1986, p. 76). is also transcendental (Lindemann 1882). An immediate consequence of Lindemann's proof of the transcendence of also proved that the geometric problem of antiquity known as circle squaring is impossible. A simplified, but still difficult, version of Lindemann's proof is given by Klein (1955). It is also known that is not a Liouville number (Mahler 1953), but it is not known if

4. YTMND - 3.141592653589793... author kraln site profile. vote. image me. sound hard n phirm - iTunes. keywords pi pie math calculus Click here to go back to YTMND.com. http://pi.ytmnd.com/

var user_id = false; var vote_auth_hash = ''; author: kraln site profile vote: starbar.add(212062, 4.3172117303854, false, ['wsc', 'fav']); image: me sound: hard 'n phirm - iTunes keywords: pi pie math calculus ... Click here to go back to YTMND.com google_ad_client = "pub-2151634439169678"; google_ad_width = 468; google_ad_height = 60; google_ad_format = "468x60_as"; google_ad_type = "text_image"; google_ad_channel ="9396373167"; google_color_border = "FFFFFF"; google_color_bg = "FFFFFF"; google_color_link = "FF0000"; google_color_url = "FF0000"; google_color_text = "000000";

5. Pi The Movie: Enter pi. The motion picture from Artisan Entertainment. http://www.pithemovie.com/

Site Design: Sean Gullette document.write('') main pithemovie.com document.write('')

6. Pi To 1,000,000 Places I used to have a million digits of pi listed here, and it was really great. But now you have brought my server to its knees with your interest in its http://3.141592653589793238462643383279502884197169399375105820974944592.com/

Pi to one MILLION decimal places 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679 8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196 4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273 724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609... Okay, wait a minute. You guys are killing my server. I used to have a million digits of Pi listed here, and it was really great. But now you have brought my server to its knees with your interest in its greatness. So, I'm going to hide all those nutty digits, and offer you something BETTER. Let me ask you something... Do you like simulated city building? Yes? Then you're in luck! Check out the following link to contribute to a city, or to start building your own city. All for fun and free... If you really want to see 1 million digits of Pi, then visit index2.html at the root of this domain. Enjoy!

7. Seattle News, Sports, Entertainment | Seattlepi.com - Seattle Post-Intelligencer Seattle local news, sports, photos, entertainment, classified ads and more from the Seattle PostIntelligencer, the oldest newspaper in Washington state. http://seattlepi.nwsource.com/

newsvinecat = '' Skip navigation MomSeattle DadSeattle SPI ... forecast Our network sites seattlepi.com Local Weather Transportation/Traffic Consumer ... Place an ad OAS_AD('Top'); Thursday, April 3, 2008 AP News of the world in photos Camera shy CEO attacks ABC News producer ... and more. ALSO IN THE NEWS Cougars coach Bennett staying at WSU New NY Starbucks workers seek $5 million Charges filed in fatal hit-and-run While fishermen die, Congress ignores safety State to reject bid to build ferry ... Surgery 'better than expected' for Goertzen Doctors said they were able to remove more of KOMO/4 news anchor Kathi Goertzen's tumor than expected. Microsoft extends XP's life, within limits Dashwire offers mobile phone backups 'HOT' lanes wide open to solo drivers for a price IKEA to customers: no more disposable plastic bags ... SPI Day in Pictures Balancing acts and more Working Dad How to parent aggressive girls Photo gallery Murakami exhibition by Louis Vuitton Carolyn Hax It's not all happily ever after for gay friend MySeattlePix Along the lanes and more LOCAL NEWS Transportation Obits ... The story behind the Dalai Lama's visit to Seattle New Spot a crime? You can now text message the details

8. Math Forum: Ask Dr. Math FAQ: About Pi What is pi? Who first used pi? How do you find it? What is it for? How many digits is it? http://mathforum.org/dr.math/faq/faq.pi.html

Ask Dr. Math: FAQ A bout Pi Dr. Math FAQ Classic Problems Formulas Search Dr. Math ... Dr. Math Home What is pi ( )? Who first used pi? How do you find its value? What is it for? How many digits is it? By definition, pi is the ratio of the circumference of a circle to its diameter. Pi is always the same number, no matter which circle you use to compute it. For the sake of usefulness people often need to approximate pi. For many purposes you can use 3.14159, which is really pretty good, but if you want a better approximation you can use a computer to get it. Here's pi to many more digits: 3.14159265358979323846. The area of a circle is pi times the square of the length of the radius, or "pi r squared": A = pi*r^2 A very brief history of pi Pi is a very old number. We know that the Egyptians and the Babylonians knew about the existence of the constant ratio pi, although they didn't know its value nearly as well as we do today. They had figured out that it was a little bigger than 3; the Babylonians had an approximation of 3 1/8 (3.125), and the Egyptians had a somewhat worse approximation of 4*(8/9)^2 (about 3.160484), which is slightly less accurate and much harder to work with. For more, see A History of Pi by Petr Beckman (Dorset Press).

9. The Pi-Search Page Find strings of digits in the first 50000000 digits of pi. http://www.angio.net/pi/piquery

The Pi-Search Page Search For: See digits starting at position How does the Pi searcher work? Why? Why? Where can I get the digits of Pi? The source code? Why is/isn't my favorite number in Pi? ... Pi Numeric Trivia Bits Dave's other pages: [ Main Personal The Pi Searcher lets you search for any string of digits (up to 120 of them) in the first 200 million digits of Pi . You can also show any substring of Pi. Updates - Happy tenth birthday to the Pi Searcher, and happy pi day 2006 to everybody! This year's pi day updates: 1) New, zippy fast index-based searching; 2) The Pi searcher pages are now fully XHTML and CSS-happy, with a new look; 3) We've added a page describing how the Pi searcher works . Also, a very grateful pi-thanks to our new ISP, Xmission , who're a very cool group of folk to work with. - Happy pi day 2005. We're now up to 200 million digits . and running on a newer, faster server. Happy pi searching! New: the top Pi searches from 1999-2005 - fixed a silly off by one error in the pi displayer. Displays are now 1-based, just like searches. - You can now display any substring in Pi with the Pi Searcher. Thanks to the people who suggested this!

10. Pi History A history of pi. A chronology of pi History Topics Index Version for printing. A little known verse of the Bible reads. And he made a molten sea, http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Pi_through_the_ages.html

A history of Pi A chronology of Pi History Topics Index Version for printing A little known verse of the Bible reads And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it about. (I Kings 7, 23) Mesopotamian values of some interpretations of this which lead to a much better value. Rhind Papyrus , which is dated about 1650 BC, there is good evidence for 4 The first theoretical calculation seems to have been carried out by Archimedes of Syracuse (287-212 BC). He obtained the approximation Before giving an indication of his proof, notice that very considerable sophistication involved in the use of inequalities here. Archimedes , and made no claim to have discovered the exact value. If we take his best estimate as the average of his two bounds we obtain 3.1418, an error of about 0.0002. Here is Archimedes ' argument. Consider a circle of radius 1, in which we inscribe a regular polygon of 3 n sides, with semiperimeter

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

12. Pi Recordings pi Recordings is an independent record label dedicated to the work of the innovative. http://www.pirecordings.com/

@import url(styles/pi_style.css); About Us We are an independent record label dedicated to releasing work of innovative musicians. label information Next Event April 4 Henry Threadgill's Zooid Banlieues Bleues Pantin, France event calendar Pi Conversations Watch a short video of Pi artists discussing music - featuring George Lewis, Steve Lehman, Rudresh Mahanthappa, and Liberty Ellman. Small (30 MB) Large (100 MB) (requires quicktime) Pi Weblog Visit our new weblog Pi T-shirts Spectrus or Kyma T-shirt. Featured Music What Am I? - Irrational Remix (Steve Lehman) Anti-Pop Consortium featuring Pharoahe Monch and L.I.F.E. Universal Indians Marc Ribot The band puts its stamp on this Ayler tune, an unreleased track from the Spiritual Unity Hope Rudresh Mahanthappa This recording is from Yatra , Rudresh's first CD, recorded in 1994. It includes Larry Kohut on bass and Jerry Steinhilber on drums. Email List Join our list and get very infrequent news updates from us. On Meaning Steve Lehman Quintet Two Rivers Amir ElSaffar Vision Towards Essence Muhal Richard Abrams Streaming Codebook Rudresh Mahanthappa Non-cognitive Aspects of the City Art Ensemble of Chicago Ophiuchus Butterfly Liberty Ellman Back in Time Odyssey the Band Demian as Posthuman Steve Lehman Simulated Progress Fieldwork Spiritual Unity Marc Ribot Mother Tongue Rudresh Mahanthappa And Now...

13. Am I In Pi? Determines where your birthday first occurs in pi. Checks the first 1254543 digits of pi. http://www.facade.com/legacy/amiinpi/

Where is your Birthday in PI? Enter your "birthday" (e.g., 22069) This document will tell you where in PI your birthday first occurs.. E.G., If you were born Feb 20th 1969 search for: 22069 Note: No spaces... (you can also search for 2201969, but, that is less likely...) For those that dont remember, PI is the big(*) number that begins with three. Thanks to Arthur Bebak (arthur@msm.com) for the idea... * It has been brought to my attention that PI is not really all that "big", per se 4 being given as an example of a number bigger than PI. I could argue that PI is bigger than an infinite number of numbers (-5 for example) but, in truth, that is kinda wimpy and misleading. It turns out that when I was thinking "big" I was thinking of all the space that was used when writing PI down. The stack of papers required to write down PI is much bigger than the stack to write down 1 million. All that said doesn't take away the fact that there was actual confusion regarding the statement of PI being a big number therefore, you should ignore that I called PI the big number that begins with three and instead consider PI to be the really long number that begins with three. Facade and our Terms and Conditions of Use . Hosting by Entertainment Earth

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

Welcome to The Exploratorium's 2008 20th Annual Pi Day Celebration page What is Pi Day? Pi Day Activity Schedule Pi Day in Second Life! If you have an avatar, go here or here A Short History of Pi Pi Activity - Discovering Pi Pi Activity - Cutting Pi and Hat Sizes ... Pi Links

15. PI Corporation At pi we are working on simple metaphors for managing all your information your Personal Information – all the information that you have access to, send, http://www.picorp.com/

Information Overload? The PC and the "GUI" of the 1980’s and 1990’s made it possible for tens of millions of people to author and manage documents. But with the spread of the Internet, the number of items information users need to deal with has increased dramatically. The established metaphors and tools for dealing with this mass of information are starting to creak and groan. Just look at the average person's “inbox”. We're routinely dealing with thousands of items of personal information - documents, email messages, web pages, calendar items, contacts, pictures, etc. The folder, desktop and drag-and-drop metaphors are no longer up to the task. Our Mission at Pi At Pi we are working on simple metaphors for managing all your information - your P ersonal I nformation – all the information that you have access to, send, receive, search for, and publish. We build off the simple metaphors of:

16. Pi - ThatCrazyChick - THATCRAZYCHICK HOME San Francisco based singer/songwriter and musician. Biography, gig dates, and song samples. http://www.thatcrazychick.com/

Skip to Content Skip to Navigation thatcrazychick HOME Hear it ... Contact Join the email list! Pi Pi Pi: thatcrazychick HOME Happy New Year! 2007 was a really great year for me, thank you all for your support of my music! In May, I released my latest album, The Curse of The Songwriter, which has been doing me proud in a number of ways. I've sold out of my original pressing, and have had all 12 of the songs licensed for a variety of TV shows. You can hear songs from the album on MTV, OXYGEN, and Nickelodeon! I've also had the pleasure of working with several films this year, you can hear my music in the short "The Appointment" by Peter Kailyn, as well as the features "Fixing Rhonda" and Wayne Wang's (The Joy Luck Club, Maid in MAnhattan) "The Princess of Nebraska! 2007 also saw a return to live playing for me, with cd releases in LA, NYC, and SF, and my favorite music town, VENTURA, CA! Many thanks to all of you who came out, and to the fabulous musicians all over the country who played with me! This year, I'll be kicking off strong, with upcoming appearances at NAMM, on the webseries "The Way We Were", and with shows nationwide. MYSPACE ! is where you'll find my COMPLETE CALENDER - check it out! A milliion thanks to you, for supporting this music. Hope to see you all in 2008!

17. PI Worldleader: Piezo Engineering, NanoPositioning, PZT, Piezo Z-Stage, Piezo Tr NanoPositioning, MicroPositioning and piezo Technology. Leading edge PZT nanopositioning products, piezoelectric flexure systems, sub-nanometer resolution http://www.physikinstrumente.com/

Moving the NanoWorld Products Solutions Nanopositioning Systems, Nanomechanisms, Scanning Stages, Piezo-Driven, Sub-Nanometer Precision Piezo Actuators (PZT Tranducers) Active Optics, Scanning, Steering, Stabilization Position Sensors: Sub-Nanometer Precise Hexapod 6DoF : Low-Inertia Parallel-Kinematics Positioning / Alignment Systems. Capacitive Sensors Sub-Nanometer Resolution Piezo Ceramic Linear Motors Ultra Fast, Auto-Locking MicroPositioning Actuators, Stages, Slides Piezo-Motor, Piezomotors Piezoelectric Motors Photonics Alignment, Packaging, Telecom Motion Controllers PI USA Custom Piezo Actuators Custom Nanomechanisms ... Photonics Solutions for Semiconductor Applications Solutions for Aerospace Applications Solutions for Astronomy Applications Solutions for Precision Machining Applications Piezo University: Piezoelectrics in Positioning Download the 2004 Supplement Catalog News Technologies Download the 2006 Nanopositioning Catalog PI wins 2005 Semi TIS Technology Innovation Showcase with NEXLINE® Pico-Positioning Linear Drive Closed-Loop Piezo Bender Actuators. Another PI first.

18. Pi Day » The Official Web Site For Pi Day, March 14th piday.org is the official web site for March 14th (3.14). Learn about pi, shop for pi tshirts, share ideas about how to celebrate pi pi day, http://www.piday.org/

343 Days 23 Hours 47 Minutes Home Learn About Pi Shop ... Pi Stuff Celebrate Pi Day! Pi, Greek letter ( ), is the symbol for the ratio of the circumference of a circle to its diameter. Pi = Pi Day is celebrated by math enthusiasts around the world on March 14th. Discussions Talk About Pi What is your favorite Pi Day activity? Successful Classroom Activities How are you celebrating this year? Quotes About Pi ... How many digits of Pi have you memorized? Learn About Pi With the use of computers, Pi has been calculated to over 1 trillion digits past the decimal. Pi is an irrational number meaning it will continue infinitely without repeating. The symbol for pi was first used in 1706 by William Jones, but was popular after it was adopted by the Swiss mathematician Leonhard Euler in 1737. Features Pi T-Shirts Pi Buttons Pi Raps on YouTube The Pi(ano) Song ... Send Happy Pi Day eCards addthis_pub = 'danhellerich'; Tell your Friends Send your friends Pi Day eCards to wish them a Happy Pi Day! Random Pi Stuff What is your favorite equation that uses Pi? Pi at Penny Arcade (Sorta) Cartoon: High Pi Navigation Homepage Join the Facebook Group About this Site Newsletter ... Widgets for Your Blog Most Popular Discussions about Pi The Pi T-Shirt YouTube Videos about Pi Pi Mini Buttons Learn more about Pi by reading Great Books about Pi

19. Keith Schofield / Pi Hard n Phirm pi Director Keith Schofield. This looks best in Quicktime 7. Encoded for Std. Quicktime. Hate Quicktime? Windows Media http://www.keithschofield.com/pi/std.html

Hard 'n Phirm "Pi" Director: Keith Schofield This looks best in Quicktime 7 Encoded for Std. Quicktime Hate Quicktime? Windows Media see more at keithschofield.com and hardnphirm.com buy the song on itunes and the album at cdbaby.

20. PI pi is a name given to the ratio of the circumference of a circle to the diameter. That means, for any circle, you can divide the circumference (the distance http://www.math.com/tables/constants/pi.htm

Home Teacher Parents Glossary ... Email this page to a friend Resources Cool Tools References Test Preparation Study Tips ... Wonders of Math Search Enter your search terms Web Math.com Submit search form Play Sudoku PI Math Miscellaneous Constants Pi is a name given to the ratio of the circumference of a circle to the diameter. That means, for any circle, you can divide the circumference (the distance around the circle) by the diameter and always get exactly the same number. It doesn't matter how big or small the circle is, Pi remains the same. Pi is often written using the symbol and is pronounced "pie", just like the dessert. History Pi web sites Do it yourself Pi The Digits ... Formulas A Brief History of Pi Ancient civilizations knew that there was a fixed ratio of circumference to diameter that was approximately equal to three. The Greeks refined the process and Archimedes is credited with the first theoretical calculation of Pi. In 1761 Lambert proved that Pi was irrational, that is, that it can't be written as a ratio of integer numbers.

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