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Kanada Yasumasa:     more detail

One divided by Pi (to 1 million digits)Kanada Yasumasa by Kanada Yasumasa, 2009-07-14 One Divided By pi (to 1 million digits) by Yasumasa Kanada, 2010-07-06 Pai no hanashi (Japanese Edition) by Yasumasa Kanada, 1991 VAISEIKA: An entry from Macmillan Reference USA's <i>Encyclopedia of Religion</i> by Kisor Chakrabarti, 2005 The Contributions of Japanese Mathematicians since 1950: An entry from Gale's <i>Science and Its Times</i> by P. Andrew Karam, 2001

lists with details

21. One Divided By Pi (to 1 Million Digits) By Yasumasa Kanada
    Free download of the Project Gutenberg eBook One Divided By pi (to 1 million digits) by Yasumasa Kanada  
    http://rdre1.inktomi.com/click?u=http://www.gutenberg.net/browse/BIBREC/BR745.HT

22. Kanada Laboratory Homepage
    HINTS project home page. Members. Staff. Yasumasa Kanada (Professor); HisayasuKURODA (Research Associate); Fumiyo KAMEDA (Secretary) Master course students.  
    http://pi2.cc.u-tokyo.ac.jp/
    
    Extractions: Our homepage in English and Japanese has been accessed by total of 36,080 network sites from 10th of August 1998 to 29th of April 2000 (.jp domain of 27,195 sites, the other domains of 8,895. The names of the top domain is .ae .ar .arpa .at .au .be .br .ca .ch .cl .cn .com .cr .cz .de .dk .do .ec .edu .ee .es .fi .fr .gov .gr .hk .hr .hu .id .ie .il .in .ir .is .it .jp .kg .kr .lb .lk .lt .mil .mn .mx .my .net .nl .no .nu .nz .ph .pl .pt .ru .sa .se .sg .si .sk .su .th .to .tr .tt .tw .ua .uk .us .ve .ye .yu .za, total number of 72 domains.) You are the -th visitor since 20th of October 1998, counter setup date. Kanada laboratory is a part of the Graduate School of Frontier Sciences Department of Frontier Informatics , the University of Tokyo , Tokyo, Japan, located in Computer Centre , The University of Tokyo. Information is available on the following topics. Our PI Archives via FTP (Addition of the Mac OS/X super_pi program : 3-rd September, 2003. Addition of the super_pi programs for the BSDI BSD/OS, X68 Linux OS, Itanium Linux OS and SGI IRIX OS : 7-th of September, 2003. Addition of the super_pi programs for the Compaq Alpha OS, Sun Sparc Solaris OS and HP-UX OS : 27-th of September, 2003. Addition of the super_pi program for the FreeBSD OS, Power3 AIX OS and Alpha Linux OS : 28-th of September, 2003. Distribution of the dedicated super_pi programs for the IBM Power4 based OS, Athlon Linux based OS, Opteron Linux based OS and other major scalar processors are planned to be started in the future.)

23. Browse Top Level > Texts > Project Gutenberg
    Project Gutenberg Authors K Kanada, Yasumasa. One Divided By pi (to 1 million digits Author Kanada, Yasumasa. KeywordsAuthors K Kanada, Yasumasa; Titles O ; Subject  
    http://webdev.archive.org/texts/textslisting-browse.php?collection=gutenberg&

24. Yasusi W/2 Kanada Or Y W/1 Kanada - ResearchIndex Document Query
    calculation of 11 irrational, 38 Joy of Pi, 5 Kanada, Yasumasa, 36 frequency of digits of 18 38 Joy of Pi, 5 Kanada, Yasumasa, 3-6 frequency of digits  
    http://citeseer.nj.nec.com/cs?cs=1&q=Yasusi w/2 Kanada or Y w/1 Kanada&s

25. Kanada's Home Page
    Yasumasa Kanada. Picture taken by the Hokkaidoshinbun newspaper company. Youare the -th visitor. Introduction of myself. Curriculum vitae Licence Hobby  
    http://www.hints.org/~kanada/

26. One Divided By Pi (to 1 Million Digits)
    One Divided By pi (to 1 million digits) Kanada, Yasumasa Yasumasa Kanada  
    http://rdre1.inktomi.com/click?u=http://www.archive.org/texts/texts-details-db.p

27. Math Trek: A Trillion Pieces Of Pi, Science News Online, Dec. 14, 2002
    Computer scientist Yasumasa Kanada and his coworkers at the University of Tokyo Information Technology Center calculate the digits of pi, Kanada and his team used formulas involving  
    http://www.sciencenews.org/20021214/mathtrek.asp
    
    Extractions: Week of Dec. 14, 2002; Vol. 162, No. 24 Ivars Peterson The number pi ( p ) represents the ratio of a circle's circumference to its diameter. Starting with 3.1415926535897932384. . ., its digits run on forever. That hasn't stopped researchers from trying to calculate as many of those digits as computer technology and mathematical methods allow. Computer scientist Yasumasa Kanada and his coworkers at the University of Tokyo Information Technology Center have now succeeded in computing 1,241,100,000,000 decimal digits of pi, smashing their own previous world record of 206,158,430,000 digits, set in 1999. The calculation required about 602 hours on a Hitachi SR8000 computer, with access to a memory of about 1 terabyte. To calculate the digits of pi, Kanada and his team used formulas involving arctangent relations of pi. For instance, you can use the following expression to work out the value of the arctangent of x to any desired number of decimal places just by evaluating the series to a sufficiently large number of terms: arctangent( x x x x x x The value of pi can then be obtained from the following equation: p = 16 arctangent(1/5) – 4 arctangent(1/239).

28. Some People That Computed Pi
    Yasumasa Kanada, David H. Bailey (back) and Eugene Salamin and William Gosper(front). David H. Bailey s license plate. Yasumasa Kanada in his office.  
    http://www.cecm.sfu.ca/projects/ISC/pigang.html

29. Slashdot | A Much Bigger Piece Of Pi
    A Much Bigger Piece Of Pi article related to Science. story on Piobsessed Professor Yasumasa Kanada. A snippet from the story "Kanada and a team of researchers The previous record, set  
    http://science.slashdot.org/science/02/12/07/1347240.shtml?tid=134

30. Project Gutenberg - Author Index: K
    Kamban, Gudmundur. Hadda Pada. Kanada, Yasumasa. One Divided By pi (to 1 milliondigits). Kandinsky, Wassily. Concerning The Spiritual In Art. Kane, William Terence.  
    http://www.gutenberg.org/browse/IA_K

31. K-12 Math And Computer Science Colloquium
    calculation pushing the limits of. number crunching machines. Dr. Yasumasa Kanada. Computer Centre, The University of Tokyo Department of Information Science, Graduate School of the University of  
    http://www.ncsa.uiuc.edu/Edu/RSE/pirse.html
    
    Extractions: 4:00 pm, Monday, November 27, 1995, 4169 Beckman Institute ABSTRACT: About five years ago I had calculated pi to 1 billion decimal places using the HITAC S-820/80 supercomputer. This year, I have calculated pi to 3.2 billion and 4.2 billion decimal places by late June and August, respectively, using the HITAC S-3800/480. The main algorithm used for the calculation was based on the AGM algorithm which was suggested by Salamin and Brent in 1976. For verification, I used a fourth order algorithm which was developed in the early 1980's by Jonathan and Peter Borwein. In order to generate more than 1 billion decimal places of pi, supercomputers, fast Fourier transforms for "big-number arithmetic" and the challenge of competition were all crucial. In my talk, I will include a discussion of how I successfully implemented the algorithms, and my future plans for a new record. Please explore a related K-12 project: Mathematics Sponsored by NCSA Education and Outreach Division

32. Índice De Autores
    Translate this page A B C D E F G H I J K L M N O P Q R S T U V W X Y Z. Kanada, Yasumasa. ONE DIVIDED BY PI (TO 1 MILLION DIGITS).  
    http://www.ciberoteca.com/search/lstObrasAutor.asp?AUT=Kanada, Yasumasa

33. Peripheria - Yasumasa Kanada (19??)
    Yasumasa Kanada (19). retour aux mathématiciens. (plusd images). Yasumasa Kanada, mathématicien japonais né en 19 au Japon.  
    http://www.peripheria.net/bios/kanada/

34. Historique Des Records - Peripheria
    les professeurs Yasumasa Kanada et Daisuke Tahashi de l université de Tokyo.  
    http://www.peripheria.net/recordsl.php
    
    Extractions: [ SPONSOR ] dernière mise à jour : 28/03/2001 Cette page contient l'historique des records relatifs au nombre Pi, pour ne voir que les derniers records en date allez à la page des records En 1999 , 206'158'430'000 calculées par les professeurs Yasumasa Kanada et Daisuke Tahashi de l'université de Tokyo. Ils ont fait le calcul deux fois avec deux algorithmes différents pour limiter les risques d'erreur. Le premier programme a tourné pendant 37h 21min 04sec (du 18 septembre 1999 19:00:52 au 20 septembre 1999 08:21:56) en utilisant l'algorithme Gauss-Legendre, et a nécessité 865Go de mémoire centrale. Le deuxième programme a tourné pendant 46h 07min 10sec (du 26 juin 1999 01:22:50 au 27 juin 1999 23:30:40) en utilisant l'Itération de Borwein du 4 ème ordre et a nécessité 817Go en mémoire centrale. L'ordinateur utilisé pour ces calculs est : un

35. PROJECT GUTENBERG - Catalog By Author - Kanada, Yasumasa
    Etexts by Author. Kanada, Yasumasa K Index Main Index OneDivided by pi LANGUAGE English SUBJECT Mathematics NOTES Math  
    http://www.informika.ru/text/books/gutenb/gutind/TEMP/kanada_yasumasa.html

36. This Is Project Gutenberg This List Has Been Downloaded From The
    1927 Jewett, Sarah Orne, 18491909 John of Damascus, Saint, circa 675-749 Johnson,Cla rence Edgar, 1906- Johnson, Samuel, 1709-1784 Kanada, Yasumasa Kay, Ross  
    http://www.informika.ru/text/books/gutenb/gutind/TEMP/authors9809a1.txt

37. Yasumasa Kanada
    Article on Yasumasa Kanada from WorldHistory.com, licensed from Wikipedia,the free encyclopedia. Return to Article Index Yasumasa Kanada.  
    http://www.worldhistory.com/wiki/Y/Yasumasa-Kanada.htm
    
    Extractions: World History (home) Encyclopedia Index Localities Companies Surnames ... This Week in History Dr. Yasumasa Kanada is a Japanese mathematician most known for his numerous world records over the past two decades for calculating digits of pi Kanada is a professor in the Department of Information Science at the University of Tokyo in Tokyo , Japan. As of 2003, 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 the Borwein brothers and the Chudnovsky brothers.

38. Math Trek: A Trillion Pieces Of Pi, Science News Online, Dec. 14, 2002
    Computer scientist Yasumasa Kanada and his coworkers at the University of Tokyo InformationTechnology Center have now succeeded in computing 1,241,100,000,000  
    http://www.sciencenews.org/articles/20021214/mathtrek.asp
    
    Extractions: Week of Dec. 14, 2002; Vol. 162, No. 24 Ivars Peterson The number pi ( p ) represents the ratio of a circle's circumference to its diameter. Starting with 3.1415926535897932384. . ., its digits run on forever. That hasn't stopped researchers from trying to calculate as many of those digits as computer technology and mathematical methods allow. Computer scientist Yasumasa Kanada and his coworkers at the University of Tokyo Information Technology Center have now succeeded in computing 1,241,100,000,000 decimal digits of pi, smashing their own previous world record of 206,158,430,000 digits, set in 1999. The calculation required about 602 hours on a Hitachi SR8000 computer, with access to a memory of about 1 terabyte. To calculate the digits of pi, Kanada and his team used formulas involving arctangent relations of pi. For instance, you can use the following expression to work out the value of the arctangent of x to any desired number of decimal places just by evaluating the series to a sufficiently large number of terms: arctangent( x x x x x x The value of pi can then be obtained from the following equation: p = 16 arctangent(1/5) – 4 arctangent(1/239).

39. New World Record: 4th October 1999
    Yasumasa Kanada Information Technology Center, Computer Centre Division,University of Tokyo Bunkyoku Yayoi 2-11-16 Tokyo 113-8658 Japan.  
    http://www.lupi.ch/PiSites/Pi-Rekord.html
    
    Extractions: Dear folks, our latest record was established as the followings: Declared record: decimal digits Two independent calculation based on two different algorithms generated 206,158,430,208 (=3*2^36) decimal digits of pi and comparison of two generated sequences matched up to 206,158,430,163 decimal digits, e.g., 45 decimal digits difference. Then we are declaring 206,158,430,000 decimal digits as the new world record. Optimized Main program run:

40. New Records At 6th July '97 And 5th April '99
    Yasumasa Kanada Computer Centre, University of Tokyo Bunkyoku Yayoi 2-11-16 Tokyo113 Japan Fax +81-3-3814-7231 (office) E-mail Yasumasa Kanada  
    http://www.lupi.ch/PiSites/Pi-Rekordold.html
    
    Extractions: first message from 1 Aug 97 - second message from April 99 Posted-Date: Fri, 1 Aug 1997 15:20:22 -0200 (GMT) Mime-Version: 1.0 Date: Fri, 1 Aug 1997 15:32:00 +0200 lmueller@pop.agri.ch From: xpolakis@hol.gr (Antreas P. Hatzipolakis) Subject: Pi Dear Lukas, Greetings from Athens - Antreas Latest PI news by Dear PI people; Now is the time for the announcement of new world record of pi. It took longer time than our expectation. Nearly two years has passed since we got new world record of 6.4 billion. Now, we got eight times more record than 6.4 billion as the following texts which you can get with anonymous ftp Our latest record was established as follows: Declared record: decimal digits Two independent calculations based on two different algorithms generated 51,539,607,552 (=3*2^34) decimal digits of pi and comparison of two generated sequences matched 51,539,607,510 decimal digits, e.g., a 42 decimal digits difference. Then we are declaring 51,539,600,000 decimal digits as the new world record. (See related lecture on Pi.) Main program run: Job start : 6th June 1997 22:29:06 Job end : 8th June 1997 03:32:17 Elapsed time : 29:03:11 Main memory : 212 GB Algorithm : Borwein's 4-th order convergent algorithm (Run the algorithm.)

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