61. A Slice Of Pi The Seattle Post Intelligencer — known as the PI — reported that a Japaneseprofessor, Yasumasa Kanada, calculated the value of pi to 1.24 trillion places, http://www.courier-journal.com/foryourinfo/030804/030804.html

Word Up Write Now FYI Home Did You Know A slice of pi Fascinating number lets you run circles around tricky geometry problems By KIRK KANDLE For The Courier-Journal To figure things out, you just need to know a little about pi. A BRIEF HISTORY OF PI A NEVER-ENDING STORY Pi is transcendental. That means it never ends and never starts repeating itself. For practical purposes, many people use 3.14159 as pi. Pi turns up in hundreds of scientific equations, including those describing the DNA double helix, a rainbow, ripples spreading from where a raindrop fell into water, geometry problems, waves, navigation and more. Figuring out pi to much more than about 1,000 decimal places serves little purpose in math or engineering, but researchers say it helps push computing power to a new level and can test the accuracy of supercomputers. WHAT ABOUT THAT PIZZA? Sources: Talking About Pi ( www.cecm.sfu.ca/~jborwein/pi_cover.html Srinivasa Ramanujan ( www.usna.edu/Users/math/meh/ramanujan.html Ramanujan, Modular Equations, and Approximations to Pi or How to Compute One Billion Digits of Pi*** ( www.cecm.sfu.ca/organics/papers/borwein

62. Yasumasa Kanada Math 49AYasumasa Kanada, of the Computer Science division of the Information This wasdiscovered in July 1997 by Yasumasa Kanada and Daisuke Takahashi at the http://www.algebra.com/algebra/about/history/Yasumasa-Kanada.wikipedia

Yasumasa Kanada Regular View Dictionary View (all words explained) Algebra Help my dictionary with pronunciation , wikipedia etc Yasumasa Kanada Yasumasa Kanada (金田 康正) is a Japanese mathematician most known for his numerous world records over the past two decades for calculating digits of Kanada is a professor in the Department of Information Science at the University of Tokyo in Tokyo Japan As of , Kanada held the world record calculating the number of digits in the decimal expansion of pi – exactly 1.2411 trillion digits. The calculation took more than 600 hours on a Hitachi SR8000 supercomputer . Some of his competitors in recent years include Jonathan and Peter Borwein and the Chudnovsky brothers External links Kanada's Home Page This biographical article about a mathematician is a stub . You can help Wikipedia by expanding it Retrieved from " http://en.wikipedia.org/wiki/Yasumasa_Kanada Categories Mathematician stubs Japanese mathematicians ... Japanese educators Views Article Discussion Edit this page History Personal tools Create account / log in Navigation Main Page Community portal Current events Recent changes ... Donations Search Toolbox What links here Related changes Upload file Special pages ... Permanent link This page was last modified 19:10, 31 May 2005.

63. Science And Technology/Computers/accurate Value Of Pi As continuation of a longrunning project, Yasumasa Kanada of the University ofTokyo Yasumasa Kanada. University of Tokyo. 1241100000000 decimal places http://www.guinnessworldrecords.com/content_pages/record.asp?recordid=47055&Reg=

64. Biblioteca Virtual Kanada, Yasumasa. One Divided By pi (to 1 million digits) (.zip 477 Kb).Kane, William Terence (1880 + 1946). For Greater Things; the story of Saint http://www.bibvirt.futuro.usp.br/gutenberg/k.html

Obras por autor - K Kanada, Yasumasa One Divided By pi (to 1 million digits) (.zip - 477 Kb) Kane, William Terence (1880 + 1946) For Greater Things; the story of Saint Stanislaus Kostka (.zip - 50 Kb) Kay, Ross Go Ahead Boys And The Racing Motorboat (.zip - 106 Kb) Keats, John (1795 + 1821) Lamia (.zip - 19 Kb) Keene, H. G. (Henry George) (1825 + 1915) Fall Of The Moghul Empire Of Hindustan (.zip - 189.52 Kb) Kehoe, Brendan P. Zen And The Art Of Internet (.zip - 70 Kb) Keim, Albert (1876 + 1947) Honore de Balzac (.zip - 108 Kb) Honore de Balzac (.zip - 490 Kb) Keith, Marian (1876 + 1961) The Black-Bearded Barbarian : the life of George Leslie Mackay of Formosa (.zip - 104.88 Kb) The Black-Bearded Barbarian : the life of George Leslie Mackay of Formosa (.zip - 105.19 Kb) Keller, Helen (1880 + 1968) Story of my life, The; with her letters (1887-1901) and a supplementary account of her education, including passages from the reports and letters of her teacher, Anne Mansfield Sullivan, by John Albert Macy (.zip - 281 Kb) Kempis, Thomas a (1380 + 1471) The Imitation Of Christ (.zip - 126 Kb)

65. DBLP: Yasumasa Kanada 6, Takahiro Katagiri, Yasumasa Kanada An efficient implementation of parallel 2, Daisuke Takahashi, Yasumasa Kanada Fast HighPrecision Arithmetic on http://www.informatik.uni-trier.de/~ley/db/indices/a-tree/k/Kanada:Yasumasa.html

Yasumasa Kanada List of publications from the DBLP Bibliography Server FAQ Coauthor Index - Ask others: ACM DL ACM Guide CiteSeer CSB ... Hisayasu Kuroda , Yasumasa Kanada: Parallel Blocked Sparse Matrix-Vector Multiplication with Dynamic Parameter Selection Method. International Conference on Computational Science 2003 EE Hisayasu Kuroda Takahiro Katagiri , Yasumasa Kanada: Knowledge Discovery in Auto-tuning Parallel Numerical Library. Progress in Discovery Science 2002 Takahiro Katagiri , Yasumasa Kanada: An efficient implementation of parallel eigenvalue computation for massively parallel processing. Parallel Computing 27 EE Tsukasa Matsuura , Yasumasa Kanada: Extraction of Authors' Charateristics from japanese Modern Setences via N-gram Distribution. Discovery Science 2000 EE Daisuke Takahashi , Yasumasa Kanada: High-Performance Radix-2, 3 and 5 Parallel 1-D Complex FFT Algorithms for Distributed-Memory Parallel Computers. The Journal of Supercomputing 15 Takahiro Katagiri , Yasumasa Kanada: A Parallel Implementation of Eigensolver and Its Performance. PPSC 1999 Daisuke Takahashi , Yasumasa Kanada: Fast High-Precision Arithmetic on Distributed Memory Parallel Machines.

66. Pi -- Facts, Info, And Encyclopedia Article 1995, (Click link for more info and facts about Yasumasa Kanada) Yasumasa Kanada, 6000000000 dps. 1997, Kanada and Takahashi, 51500000000 dps http://www.absoluteastronomy.com/encyclopedia/p/pi/pi.htm

Pi [Categories: Pi, Famous numbers, Mathematical constants, Transcendental numbers] The (Click link for more info and facts about mathematical constant) mathematical constant is commonly used in (A science (or group of related sciences) dealing with the logic of quantity and shape and arrangement) mathematics and (The science of matter and energy and their interactions) physics (Click link for more info and facts about Greek letter) Greek letter is not available. In (Click link for more info and facts about Euclidean plane geometry) Euclidean plane geometry (The relative magnitudes of two quantities (usually expressed as a quotient)) ratio of a (Ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point) circle 's (The length of the closed curve of a circle) circumference to its (The length of a straight line passing through the center of a circle and connecting two points on the circumference) diameter , or as the (A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)) area of a circle of (The length of a line segment between the center and circumference of a circle or sphere) radius 1 (the (Click link for more info and facts about unit circle) unit circle (Click link for more info and facts about analytically) analytically using (Function of an angle expressed as a ratio of the sides of right-angled triangle containing the angle)

67. Só Páginas Sobre O Número PI Pi through the ages Yasumasa Kanada s FTP site Computer Centre, University ofTokyo Latest Record of Yasumasa Kanada; 6.4 Billion 6400000000000 digits! http://www.mat.uc.pt/~jaimecs/pipag.html

A Trillion Pieces of Pi in Ivars Peterson's MathTrek POETIC LICENCE: Pi calculated to 1.24 trillion digits by Kaleem Omar, Daily Times (Pakistan) Boffins find 1.2 trillion pieces of pi (news.com.au) A Much Bigger Piece Of Pi (slashdot.org) Researchers calculate pi to more than 1 trillion places for world record (SFGate.com) A very precise slice of pi (The Japan Times) - Mathematicians tackle the seeming randomness of pi's digits (Science News) Current publisized world record of pi calculation Frequency distribution of digits up to 1,200,000,000,000-th digit of decimal digit of pi , from Kanada Laboratory (Tokyo, Japan). O dia do PI aproxima-se // PI Day is approaching... National Pi Day is March 14th (3.14). . See the program for the 2004 celebration , and the S. Francisco Exploratorium PI Page Ideas for activities that can be used for Pi Day celebration on March 14 (3.14) PI APPROXIMATION DAY "This Pungenday (the 57th of Confusion) is Pi Approximation Day, being on the Aneristic Calendar 22/7" - Pi Approximation Day is on the 22/7 - that is, July 22. For the past few years, people at Chalmers University have celebrated it. Pi Approximation Day (March 14) e-cards Pi Approximation Day (March 14) is a day to recognise the importance of our favorite number, Pi [3.1428..]. So, let's lay back and try to memorise the value of Pi giving thought to the marvellous mysteries behind this number. While you are at it, why not celebrate by eating pies [Pi's] and send some Pi greeting cards to your friends? (123Greetings)

68. Plouffe's Inverter Who Yasumasa Kanada and Daisuke Takahashi (University of Tokyo). When FromJune 26 to September 20 1999 (2 independant runs). http://pi.lacim.uqam.ca/eng/records_en.html

Table of current records for the computation of constants last update was June 8, 2000 by Simon Plouffe N'th binary digit computations Other records Notes Classical constants Pi = 3.141592653589... Precision : decimal digits (almost 3*2^36). Time of computation : about 37 and 46 hours for each computation. Machine: HITACHI SR8000 Who : Yasumasa Kanada and Daisuke Takahashi (University of Tokyo). When : From June 26 to September 20 1999 (2 independant runs). Algorithms : Gauss-Legendre and Borwein's 4'th order iteration. 1/Pi = 0.3183098661... Precision digits which is almost 3*2^36. Time of computation: Same as above When : From June 26 to September 20 1999 (2 independant runs). Algorithm : Gauss-Legendre and Borwein's 4'th order iteration. E = 2.71828182845... Precision : digits. (for downloads see The Big files directory) Time of computation: real time: 79 hours and 30 minutes. Who : Xavier Gourdon When : 1999, Nov, 14 (verification : 1999, Nov 21) Timing : The computation took 39h and 52 minutes on a IBM ThinkPad (PII 350 Mhz, 320 Mo of memory). The verification took 40 hours 25

69. Philippe B. De L'Arc - Digressions record 206.158.430.000 décimales par Yasumasa Kanada et Daisuke Takahashi http://pboursin.club.fr/bonus2.htm

DIGRESSIONS 2 calcul de pi le nombre d'or retour L'alphabet grec alpha gamma delta epsilon a b g d e z h q A B G D E Z H Q iota kappa lambda mu nu xi omicron pi i k l m n x o p I K L M N X O P ro sigma tau upsilon phi khi psi r s t u j c y w R S T U F C Y W Le calcul de Pi du grec (periphereia, pherein porter, peri autour) Pi = 3,141 592 653 589 793 238 462 643 383 279 Qui de ton jugement peut priser la valeur ? O quadrature ! Vieux tourment du philosophe ! Insoluble rondeur, trop longtemps vous avez Fonction du rayon. Pas trop ne s'y tiendra : calcul de pi date Babylone ( 16 / 9 ) x 2 = 3.555555556 Chine Bible valeur entre 3 + 10/71 et 3 + 10/70 = 3.141851107 Hon Han Shu Chung Hing Wang Fau Liu Hui Siddhanta Tsu Chung Chih Aryabhata Brahmagupta Al-Khowarizmi Leonardo Fibonacci (Leonard de Pise) Al-Kashi Otho Viete Romanus Van Ceulen Grienberger Newton Sharp 71 sur 72 Seki John Machin Machin 16 ATAN(1/5) - 4 ATAN(1/239) = 3.1415926535...3421170679 De Lagny Euler 4 ATAN(1/2) + 4 ATAN(1/3) = 3.1415926535...1480865132 112 sur 127 Takebe Katahiro Matsunaga Vega Euler 1755 20 ATAN(1/7) + 8 ATAN(3/79) = 3.1415926535...5058223172 136 sur 140 Callet 152 sur 154 Riemann Bernhard Pi ^4 / 90 = 1 + 1 / 2^4 + 1 / 3^4 + 1 / 4^4 + 1 / 5^4 + 1 / n ^4 Rutherford Euler 1764 16 ATAN(1/5) - 4 ATAN(1/70) + 4 ATAN(1/99) = 3.1415926535...5940812848

70. Índice De Autores Watley Archives Computer Finds Last Digit of PiResearchers at Tokyo University, led by Professor Yasumasa Kanada, calculatedthe value for pi with a Hitachi supercomputer for over 500 hours in April. http://www.ciberoteca.com/search/lstObrasAutor.asp?AUT=Kanada, Yasumasa

71. Re: Rationality Of Pi Last year, Yasumasa Kanada at the University of Tokyo computed the value of Pito 6442450000 places. Like the Everready Bunny Rabbit , the value of Pi http://128.252.223.112/posts/archives/may96/828106856.Ot.r.html

MadSci Network : Other Re: Rationality of Pi Area: Other Posted By: Eric C. Maass, Industry - EE, Biomed Eng, Stat Date: Mon Apr 22 09:38:18 1996 The question was: There was a message on LM_Net saying that a math teacher had heard that pi has been found to be a terminating decimal and wanting verification. I am also a math teacher and would be interested in knowing if this is true. Thanks for your help. Unfortunately, no - if pi had been found to be a terminating decimal, then it would be a rational number, but that is not the case. Last year, Yasumasa Kanada at the University of Tokyo computed the value of Pi to 6,442,450,000 places. Like the "Everready Bunny Rabbit", the value of Pi keeps on going and going and going...if your students recited the value of Pi as calculated by Kanada at the rate of 5 digits per second, without stopping to eat or sleep (unlikely!), they would be reciting for 41 years! Of course, during that time someone else would have taken Pi to even more digits - and it still will not have terminated. Some people express Pi as 22/7, which is only correct to three places. 22/7 is a rational number. An irrational number cannot be expressed as a ratio of any two whole numbers, no matter how large the two numbers are. For Pi to be rational, with a value as calculated by Kanada to over 6 billion places, those two whole numbers would have to be very large!

72. Curiosidades Sobre O Número Pi ( Pi ) Translate this page Em 1983, Yoshiaki Tamura e Yasumasa Kanada, em menos de 30h, em um HITAC M-280 H Em Julho de 1997, Yasumasa Kanada y Daisuke Takahashi obtiveram http://feiradeciencias.com/fc/dpfis/medfis/pi.html

Curiosidades sobre o número Pi ( é a razão da circunferência de um círculo pelo seu diâmetro. Em distintas culturas, tais como chinesa, egípcia, européia, índia, etc., procurou-se obter melhores aproximações de por ser de aplicação em campos distintos como astronomia e construção. Muitas das tentativas de determinar o valor do na antiguidade utilizavam o método de calcular o perímetro de polígonos inscritos e circunscritos em uma circunferência. Modernamente para determinar o se utiliza uma série infinita convergente. Este método foi utilizado pela primeira vez em Kerala (Índia) no século XV. A probabilidade de dois números inteiros positivos escolhidos ao acaso serem primos entre si é de: 6/ Se forem escolhidos aleatoriamente dois números positivos menores que 1, a probabilidade de que junto com o número 1 possam ser os lados de um triângulo obtusângulo é: ( Em 1706, o inglês William Jones foi o primeiro a utilizar o símbolo grego para denotar a relação entre a circunferência e seu diâmetro. Euler em sua obra "Introdução ao cálculo infinitesimal", publicada em 1748, deu ao

73. NetLibrary Public Library Consortium Titles 1/pi to 1.000.000 digits; Kanada, Yasumasa; Project Gutenberg 100% the story ofa patriot; Sinclair, Upton; University of Virginia Library http://www.wils.wisc.edu/coop/vendor/netlib4.html

Public Domain eBooks at NetLibrary as of May 5, 2003 Public Library Consortium Site Map Upcoming Events Publications ... To Main Titles-Authors-Publisher listed alphabetically by Title Top A B C ... X-Z 1/pi to 1.000.000 digits; Kanada, Yasumasa; Project Gutenberg 100% the story of a patriot; Sinclair, Upton; University of Virginia Library 1492; Johnston, Mary; University of Virginia Library 1993 world factbook; Project Gutenberg 22 documents concerning the founding of the University of Virginia, 1829-1860; University of Virginia Library 45 letters to and from Jefferson, 1818-1819; Jefferson, Thomas; University of Virginia Library 68 letters to and from Jefferson, 1805-1817; Jefferson, Thomas; University of Virginia Library Top A B C ... X-Z A A bird out of the snare; Fisher, Dorothy Canfield; University of Virginia Library A book of nonsense; Lear, Edward; Project Gutenberg A book of remarkable criminals; Irving, H. B.; University of Virginia Library A book of scoundrels; Whibley, Charles; University of Virginia Library

74. Abbott, David Abbott, Edwin Adams, Andy Adams, Henry Adams, John Henry Jefferies, Richard Johnson, Samuel Joyce, James Kanada, Yasumasa Kane,William Terence Keller, Helen Kennedy, John F. Kilner, Dorothy Kipling, http://www.ifis.uni-luebeck.de/lehre/ss03/info2/ueb2/eintraege.txt

EmileAbbott, David Abbott, Edwin Adams, Andy Adams, Henry Adams, John Adams, Samuel Adams, William Addams, Jane Addison, Joseph Aiken, Conrad Anzengruber, Ludwig Appleton, Victor Apuleius, Lucius Arbuthnot, John Ariosto, Ludovico Austen, Jane Babbage, Charles Bacheller, Irving Bacon, Franci Ball, Hugo Ball, Robert Ballantyne, R. Balzac, Honore de Bancroft, Eli Baring, Maurice Barr, Amelia E. Barrie, James Bates, Henry Beaumont, Mary Beerbohm, Max Beethoven, L. Bennett, Arnold Bojer, Johan Borrow, George Bronte, Anne Bronte, Charlotte Bronte, Emily Butler, Samuel Caesar, Julius Cahan, Abraham Caine, Hall, Calamity Jane Carlyle, Thomas Carpenter, Edward Carpenter, John Carr, Annie Roe Carroll, Lewis Casanova, Giacomo Casson, Herbert Claxton, William Cobb, Irvin S. Coke, Henry J. Conrad, Joseph Corson, Hiram Crile, George Dante Alighieri Darlington, Edgar Darwin, Charles Daudet, Alphonse De Presno, Odd Defoe, Daniel Dickens, Charles Dodge, Mary Douglass, Frederick Duff Gordon, Lucie Dumont, Theron Q. Dunbar, Alice Eastman, Charles Edgeworth, Maria, Evans, Mary Anne Farrar, John Fee, Greg Ferber, Edna Fleming, May Agnes Frederic, Harold Gaboriau, Emile Garland, Hamlin Gay, John Ginzberg, Louis Gonzales, Don Manoel Goodwin, John Grahame, Kenneth Grammaticus, Saxo Greenwood, William Grossmith, George Hardy, Thomas Harte, Bret Haydn, Joseph Hearn, Lafcadio Hemingway, Percy Hemphill, Scott Hesse, Hermann Homer Houdini, Harry Hughes, Thomas Hume, Fergus Iron, Ralph James, Henry Jefferies, Richard Johnson, Samuel Joyce, James Kanada, Yasumasa Kane, William Terence Keller, Helen Kennedy, John F. Kilner, Dorothy Kipling, Rudyard Lang, Andrew Laxer, Mark Eliot LeFebure, Victor Levy, Steven Ling, Princess Der Long, Helen Beecher Lord, John Lowndes, Luther, Martin Maag, Carl MacCaffrey, James MacClintock, William Darnall MacClure, Victor MacDonald, George MacGrath, Harold MacKay, Charles Marcus Aurelius Mason, Amelia Ruth Gere Mason, Mary Murdoch Mayo, Margaret McAfee, Cleland Boyd McCabe, Joseph Mims, Edwin Moldeven, Meyer Morris, Charles Morris, George Pope Nadin, Mihai Oliphant, Laurence Osler, William Page, Thomas Nelson Penrose, Margaret Perdue, Mitzi Poe, Edgar Allan Polly, Jean Armour Pretty, Francis Pyle, Howard Rand, Ayn Reed, Myrtle Reilly, S. A. Reynolds, John N. Riley Rilke, Rainer Maria Roosevelt, Franklin Delano Roth, Lewis Rougemont, Louis de Ryan, Kenneth, Father Salza, Giuseppe Scavezze, Dan Schwartau, Winn Sidney, Margaret Sidney, Philip Slaveykov, Pencho Slowinski, David Smith, Jewell Ellen Spooner, Lysander Sprague, Ruth M. Stallman, Richard M. Steedman, Amy Steele, Chester K. Sterling, Bruce Stout, Rex, 1886 Sumanaru, Simona Summerhayes, Martha Sun, Tzu Syrett, Netta Tacitus, Cornelius Tao, YuanMing Thomson, James Todd, Burbank Trenck, Friedrich Trueman, Howard Truth, Sojourner Tymon, Frank Uzanne, Octave Verne, Jules Webster, Jean Whale, George White, Stewart Edward Wolf, Emma Wu Tingfang Wurdz, Gideon Xenophon, Zola

75. La Ciencia Es Divertida : Pi Translate this page En 1983, Yoshiaki Tamura y Yasumasa Kanada, en menos de 30 h, en un HITAC M-280 H En Julio de 1997, Yasumasa Kanada y Daisuke Takahashi obtuvieron http://www.cnice.mecd.es/eos/MaterialesEducativos/mem2001/ciencia/pi.html

Portada Anécdotas Curiosidades Elementos ... Mapa Algunas curiosidades sobre el número Pi ( Pi es la razón de la circunferencia de un circulo a su diámetro En distintas culturas, china, egipcia, europea, india, etc., se trato de obtener mejores aproximaciones de Pi por ser de aplicación en campos tan distintos como la astronomía o la construcción. Muchos de los intentos de evaluar Pi en la antigüedad utilizaban el método de calcular el perímetro de polígonos inscritos y circunscritos a circunferencias. Modernamente para evaluar Pi se utiliza una serie infinita convergente. Este método fue utilizado por primera vez en Kerala (India) en el Siglo XV La probabilidad de que dos enteros positivos escogidos al azar sean primos entre si es 6/Pi Si se eligen al azar dos números positivos menores que 1, la probabilidad de que junto con el número 1 puedan ser los lados de un triángulo obtusángulo es (Pi-2)/4 En 1706, el inglés William Jones fue el primero en utilizar el símbolo griego para denotar la relación entre la circunferencia y su diámetro.

76. Kennislink - 9 December 2002:Nieuw Pi-record In september van dit jaar is door het team van professor Yasumasa Kanada van deuniversiteit van Tokio een nieuw record gevestigd op het gebied van het http://www.kennislink.nl/web/show?id=92946

77. Chronologie Du Calcul Scientifique Translate this page Calcul de p avec 2000036 décimales par Yasumasa Kanada et K. Miyoshi sur un FACOMM-200 (Japon) IBM PC Création de Dassault Systems http://gersoo.free.fr/calsci/history.html

Documents personnels Calcul Scientifique Editions MIR Informatique ... Grenier Chronologie de l'Informatique Scientifique l'Informatique Scientifique Nomenclature CAO, infographie Informatique, calcul intensif Programmation, calcul formel et symbolique Abaques chinois Publication de Liber Abaci Invention des logarithmes par John Napier de Merchiston Formule de Stirling-De Moivre pour le calcul des factorielles La Pascaline de Blaise Pascal Interpolation de Lagrange Introduction des nombres complexes par Caspar Wessel de Charles Babbage Machine Analytique Inventions des quaternions par William Rowan Hamilton steepest descent method ) par Augustin Louis Cauchy Utilisation des quaternions par Arthur Cayley pour les rotations dans l'espace Formule de Schwarz-Christofell pour les transformations conformes Equation de KdV de Diederik Korteweg et Gustav de Vries Premier algorithme de FFT par Carle David Tolme Runge Publication de Modular Equations and Approximations to delta-2 Sous-espaces de Alexei Nikolaevich Krylov Algorithme de Remes pour les approximations de Chebyshev Calculateur programmable Z3 de Konrad Zuse (Allemagne) Algorithme de FFT de Cornelius Lanczos et G.C. Danielson

78. Wiswijzer brothers (1989) 1.011.196.691 Yasumasa Kanada (1989) 1.073.740.000 Chudnovskybrothers (1991) 2.160.000.000 Yasumasa Kanada (1995) 3.221.220.000 http://www.wiswijzer.nl/pagina.asp?nummer=314

79. Get Back In The Kitchen And Make Me Some Pi Both marks were set by teams lead by Tokyo University professor Yasumasa Kanada.The computer program that generated the number only took 400 hours to http://brian.carnell.com/articles/2002/12/000006.html

Brian.Carnell.Com Archives Years December Get Back in the Kitchen and Make Me Some Pi Brian.Carnell.Com Keep your management off my digital rights Guests Logon Account Signup Get Back in the Kitchen and Make Me Some Pi By Brian Carnell Saturday, December 7, 2002 Japanese researchers have calculated PI to 1.24 trillion places . The previous record was a mere 206.158 billion places. Both marks were set by teams lead by Tokyo University professor Yasumasa Kanada. The computer program that generated the number only took 400 hours to execute, but Kanada's team spent 5 years designing it. This is actually important beyond the simple feat of calculating X trillion places to PI. As David Bailey of Lawrence Berkeley National Laboratory tells the Associated Press, calculating PI to that many places would be impossible in any sort of human-relevant timespan with all previously used methods. The innovations that Kanada has introduced to make his PI calculations achievable are also broadly applicable to other calculation problems. Source: Japan Pi Value Calculation Earns Record . Associated Press, December 6, 2002.

80. The Aula Point Of View Useless Science Professor Yasumasa Kanada and nine other researchers at theInformation Technology Center at Tokyo University calculated the value of pi to http://www.aula.cc/20021207.html

7 December 2002 Site of the Day, a rollicking waste of time, courtesy of one Hiedi E. husain Here are some of the very pretty images abbas From CNN ... abbas Useless Science: Professor Yasumasa Kanada and nine other researchers at the Information Technology Center at Tokyo University calculated the value of pi to 1.2411 trillion places with a Hitachi supercomputer in September. Full story abbas Aula is an open community of people working in different fields of life including science, art, business, government and NGOs. More Aula Point of View Readers of the Aula Point of View weblog please note! The POV now continues at 3quarksdaily.com Aula talks online Joichi Ito Lawrence Lessig Member pages Aula by date Latest entries August 2005 July 2005 June 2005 ... June 2002

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