81. Konstruktionspraxis: PI Auf Mehr Als Eine Billion Stellen Berechnet Translate this page Yasumasa Kanada und seine Kollegen von der University of Tokyo haben die KreiszahlPi auf bis zu 1241 Billionen Stellen hinter dem Komma berechnet. http://www.konstruktionspraxis.de/news/kp_beitrag_39285.html

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82. Pushing Back Pi To find out you might like to talk to Yasumasa Kanada and his colleagues at theUniversity of Tokyo. They have recently broken the world record for http://plus.maths.org/issue3/news/pi/

about Plus support Plus ... Plus search plus with google home latest issue explore the archive ... news Permission is granted to print and copy this page on paper for non-commercial use. For other uses, including electronic redistribution, please contact us. Latest news Spaghetti breakthrough What happens to bent pasta? How to measure a million The risks in Who wants to be a millionaire? Not just knots: the secrets of khipu The Inka way of counting Machine prose A computer program that can learn languages A new time machine Take a journey to the limits of common sense Gene-ius The search for the maths gene Plus... more news from the world of maths Explore the news archive Subscribe to our free newsletter Get the ... posters! September 1997 News Pushing back Pi The decimal number system was introduced to Europe nearly 800 years ago and is a vast improvement on the previous system of Roman numerals (see " The life and numbers of Fibonacci " elsewhere in this issue). But good though it is, the decimal number system cannot represent all numbers exactly. Although sums like 4 divided by 33 result in values with an infinite number of digits to the right of the decimal point, they always have repeating patterns. We can use special dots placed above the digits to show this.

83. Programme Hisayasu Kuroda, Takahiro Katagiri and Yasumasa Kanada (Japan). 17401800,Parallelization of a Density Functional Program for Monte-Carlo Simulation of http://vecpar.fe.up.pt/2000/Prog.html

Final Programme The final programme consists in 66 papers, 11 posters, 6 invited talks and 3 tutorials. All papers and posters will be included in the proceedings to be distributed during the conference; however, only the 67 papers will be eligible for publication by Springer. The conference will open on Wednesday (21 June) and close on Friday evening (23 June) with a banquet, after which you are invited to participate in the annual celebration of São João (Saint John), the city patron saint. The day before the conference (20 June, Tuesday) has been allocated to 3 tutorials (one full day and two half day) on the following subjects: June tuesday Linear Algebra Algorithms and Software for Large Scientific Problems (Full day) by Jack Dongarra (University of Tennessee and ORNL, USA), Iain Duff (CERFACS, France, and RAL, United Kingdom) and Danny Sorensen (Rice University, USA) Benchmarking High Performance Computers: Fundamentals and Practice (Half day) by Aad J. Van der Steen (Utrecht University, The Netherlands) The Globus Grid Programming Toolkit (Half day) by Ian Foster (Argonne National Lab. and the University of Chicago, USA)

84. Kanada Family Homepage Yasumasa Kanada (Professor); Hiroyuki SATO (Associate Professor); HisayasuKURODA (Research Associate); Fumiyo KAMEDA (Secretary) http://www.kanadas.net/

Kanada Family home page Click here for Japanese version. You are the -th visitor since 22nd of April 2000. Kanada Family Home page is under construction. You can enjoy with Yasumasa's Laboraty Home page at University of Tokyo. Kanada laboratory is a part of the Department of Information Science , Faculty of Science, the University of Tokyo , Tokyo, Japan, located in Computer Centre , The University of Tokyo. Information is available on the following topics. Laboratory Information Our Laboratory Papers (in English) Our PI Archives via FTP Members Staff Yasumasa KANADA (Professor) Hiroyuki SATO (Associate Professor) Hisayasu KURODA (Research Associate) Fumiyo KAMEDA (Secretary) Doctoral course students Takahiro KATAGIRI (IPSJ Research Fellow DC, D3) Tsukasa MATSUURA Master course students Kiyoshi OHSAWA Hidenori YAMAGISHI Teruhiko YOSHIDA Temporary absence from school Yoshio TSUKUDA (M1) Ex-students or ex-staff Makoto KAMADA (M2) Gyo Jun KA (D1) Nobuhisa FUJINAMI (M2, Sony Co. Ltd.)

85. APM - Educação E Matemática Translate this page Mas Yasumasa Kanada continuou a sua investigação e, em 1999 estabeleceu o recorde Qual a razão desta obsessão de Yasumasa Kanada, quando é sabido que, http://www.apm.pt/apm/curiosidades/curio14.htm

Voltar Outra vez pi? Susana Diego (com base num artigo da Associated Press que pode encontrar-se em http://www.sfgate.com/cgi-bin/article.cgi?file=/news/archive/2002/12/06/international0835EST0499.DTL adaptada da obra de David Blatner 'The Joy of pi', 1997 05 de junho de 2003 Projecto "Matemática é de todos"

86. FUSION Anomaly. Pi Professor Yasumasa Kanada of the University of Tokyo and Dr Daisuke Takahashimade the calculation by running two different programs in September 1999. http://fusionanomaly.net/pi.html

Telex External Link Internal Link Inventory Cache Pi This nOde last updated February 26th, 2004 and is permanently morphing... (7 Cauac (Rain) / 7 K'ayab (Turtle) 69/260 - 12.19.11. plural pis 1. The 16th letter of the Greek alphabet. 2. Mathematics. A transcendental number, approximately 3.14159, represented by the symbol p, that expresses the ratio of the circumference to the diameter of a circle and appears as a constant in many mathematical expressions. plural pis also pies An amount of type that has been jumbled or thrown together at random. verb To jumble or mix up (type). verb, intransitive To become jumbled. [Origin unknown.] The most decimal places to which pi (p) has been calculated is 206,158,430,000. Professor Yasumasa Kanada of the University of Tokyo and Dr Daisuke Takahashi made the calculation by running two different programs in September 1999. The programs ran for 37 hours 21 minutes. pi, in mathematics, the ratio of the circumference of a CIRCLE to its diameter; its symbol is p. The ratio is the same for all circles and is approximately 3.1416. The NUMBER p is irrational and transcendental. An early value was the Greek approximation 3 1/7; by the mid-20th cent. a computer had calculated p to 100,000 decimal places. The formula shown below allows one- if one wishes-to find the billionth digit of pi without first computing the preceding 999,999,999 digits. In other words

87. Yasumasa Kanada Name, Yasumasa Kanada. Job Title, Professor. Function Name, Information TechnologyCenter Computer Centre Division. Lecture Course, Undergraduate http://www.adm.u-tokyo.ac.jp/IRS/IntroPage_E/intro47422077_e.html

Name Yasumasa Kanada Job Title Professor Function Name Information Technology Center Computer Centre Division Lecture Course Undergraduate Program in the 1st Semester Undergraduate Program in the 2nd Semester Graduate School Study Field INTERDISCIPLINARY AREA /Information Science /Computer Science INTERDISCIPLINARY AREA /Information Science /Study of Information System (including Library and Information Science) WIDE AREA /Wide Area /Wide Area Current Study Theme Parallel algorithm Pertormance Analysis Research on Research Study Contents by Key Word Literary Works (Books,Writings), Research Paper Title Source Year Homepage English http://www.cc.u-tokyo.ac.jp/kenkai/kanada-lab/index.html Japanese http://www.cc.u-tokyo.ac.jp/kenkai/kanada-lab/index-j.html E-mail Address Last Update Japanese

88. New REDUCE Network Library Server I am happy to announce that Dr. Yasumasa Kanada at the University of Tokyo hasset up an additional REDUCE Network Library server for the convenience of http://www.uni-koeln.de/REDUCE/reduce-forum/92/msg71.html

Prev Next Index New REDUCE Network Library Server To: reduce-forum@rand.org Subject: New REDUCE Network Library Server Date: Fri, 10 Jul 92 10:50:42 -0700 From: hearn@hilbert I am happy to announce that Dr. Yasumasa Kanada at the University of Tokyo has set up an additional REDUCE Network Library server for the convenience of users in Japan and nearby areas. The address of this server is reduce-netlib@pi.cc.u-tokyo.ac.jp. It is used in the same manner as the existing servers reduce-netlib@rand.org, reduce-netlib@can.nl and redlib@elib.zib-berlin.de. My thanks go to Dr. Kanada for providing this service to the REDUCE user community. Tony Hearn Prev: Curve Fitting Next: Curve Fitting Index: Mail Index see also: REDUCE Home Page

89. Professor Breaks Own Record -- For Thrill Of Pi Browse By Author K Project GutenbergKanada, Yasumasa. One Divided By pi (to 1 million digits) (). Kandinsky,Wassily (1866-1944). Concerning the Spiritual in Art (English) http://seattlepi.nwsource.com/national/98912_pi07.shtml

Jump to Weather Traffic Mariners Seahawks ... Calendar NEWS Local Neighborhoods Sports Nation/World ... Special Reports COMMENTARY Opinion Columnists Letters David Horsey ... Forums COFFEE BREAK Horoscope TV Listings FIND IT! NWclassifieds Jobs Autos Real Estate ... Obituaries P-I ANYWHERE E-mail Newsletters News Alerts PDA Cell Phones ... RSS Feeds OUR AFFILIATES Saturday, December 7, 2002 Professor breaks own record for thrill of pi Calculation to 1.24 trillion places is 'enormous feat of computing' By AUDREY MCAVOY THE ASSOCIATED PRESS TOKYO To most people, it's a funny-looking Greek letter that has something to do with circles. To Professor Yasumasa Kanada, however, pi is an obsession. Kanada and a team of researchers set a new world record by calculating the value of pi to 1.24 trillion places, project team member Makoto Kudo said yesterday. The previous record, set by Kanada in 1999, was 206.158 billion places. 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. "It's an enormous feat of computing not only for the sheer volume, but it's an advance in the technique he's using," said David Bailey, the chief technologist at the National Energy Research Scientific Computing Center at the Lawrence Berkeley National Laboratory in California.

90. Talk:Yasumasa Kanada - Wikipedia, The Free Encyclopedia TalkYasumasa Kanada/Archive 1. Retrieved from http//en.wikipedia.org/wiki/TalkYasumasa_Kanada . Views. Article Discussion Edit this page + http://en.wikipedia.org/wiki/Talk:Yasumasa_Kanada

Talk:Yasumasa Kanada From Wikipedia, the free encyclopedia. Talk:Yasumasa Kanada/Archive 1 Retrieved from " http://en.wikipedia.org/wiki/Talk:Yasumasa_Kanada 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 17:56, 9 May 2005. All text is available under the terms of the GNU Free Documentation License (see for details). About Wikipedia

91. Experimental Mathematics Website containing the first 100 million hex digits of pi (thanks to Yasumasa Kanadaof the Univ. of Tokyo) http//crd.lbl.gov/~dhbailey/expmath/PI1G00.gz http://crd.lbl.gov/~dhbailey/expmath/

Experimental Mathematics Website http://www.experimentalmath.info This is a plot of all roots of polynomials with coefficients 1 or -1 up to degree 18. Coloration is by sensitivity of the polynomials to slight variation around the values of the zeros. The color scale represents a normalized sensitivity to the range of values; red is insensitive to violet which is strongly sensitive. The bands, quite clearly visible in the plot, are unexplained. Please send any comments or questions for this site to: zzzzzzzz@lbl.gov. This email address is coded to defeat spammers. To obtain the real address, replace the z's with "dhbailey". Site updated 2005-08-19 Experimental Math Books A two-volume set of books on experimental mathematics has been completed by Prof. Jonathan M. Borwein of the University of Dalhousie in Canada; Dr. David H. Bailey of the Lawerence Berkeley National Lab in the USA; and (for vol. 2) Dr. Roland Girgensohn of the Technical University of Munich in Germany. In a review published in Math Reviews, mathematician John H. Mason writes, "Let me cut to the chase: every mathematics library requires a copy of this book (and its companion volume)" Review . The two books are: Vol. 1: Mathematics by Experiment: Plausible Reasoning in the 21st Century.

92. Most Accurate Version Of ‘pi’ World Record Holder Land Records Guinness World The most decimal places to which pi (p) has been calculated is 1073740000 byYasumasa Kanada and Yoshiaki Tamura of The university of Tokyo, Japan on 19 Nov http://www.4to40.com/recordbook/index.asp?category=&counter=323

93. Stu's Pi Page Carey Bloodworth, Mikko Tommila, Sebastian Wedeniwski, Gio Ciampa, and YasumasaKanada as well as other interesting places about 3.14159 . http://home.istar.ca/~lyster/pilinks.html

B Program Speed Records F astest program C hart of programs ... isclaimer B Size Records S uper computer H ome computer Links A uthors's links E -mail to Stu ... i-Hacks e-mail discussion group THE BEST PI PLACES The links below take you to the home pages of Xavier Gourdon, Takuya Ooura, Alan Pittman Carey Bloodworth, Mikko Tommila, Sebastian Wedeniwski, Gio Ciampa, and Yasumasa Kanada as well as other interesting places about 3.14159.... Xavier Gourdon Home to the fastest p program on the planet for the PC. Also home to the size record holder for number of digits of p calculated on a home computer - 17,100,000,000 digits (15.93-gigs) record computation by Shigeru Kondo using PiFast 4.3, see Size Records/Home Computer for details Schnell-pi homepage - link is down, please advise A recent pi program running on Linux, named Schnell-pi and written by Dominique Delande is comparible to the fastest programs. No windows version of this program exists for the moment. See Dar's page listed here for a Linux comparison. One can only beg and plead with Dominique to look down on us lesser mortals in the Windoze world, and release a version which can be tested head-to-head with the other programs Carey Bloodworth's page Home of Pi 2.3.1 the first program to go over a gigabyte of digits on a home computer, and the eighth fastest to reach a megabyte of digits.

94. î•ñˆ—Šw‰ï“dŽq}‘ŠÙ Translate this page The summary for this Japanese page contains characters that cannot be correctly displayed in this language/character set. http://fw8.bookpark.ne.jp/cm/ipsj/select.asp?pageno=3&pagenum=10&category1=JInfP

95. î•ñˆ—Šw‰ï“dŽq}‘ŠÙ Translate this page The summary for this Japanese page contains characters that cannot be correctly displayed in this language/character set. http://fw8.bookpark.ne.jp/cm/ipsj/select.asp?pageno=13&pagenum=10&category1=JInf

96. Table2 nécessite 100 000 livres de 200 pages. Une bonne bibliothèque !! vive les http://www.math.univ-mulhouse.fr/Pi/Table2.html

Les meilleures approximations de p au 20 NOM DATE NOMBRE DE DECIMALES EXACTES Ferguson Ferguson Ferguson et Wrench Smith et Wrench Reitwiesner et al. ( ENIAC) Nicholson et Jeenel Felton Genuys Felton Guilloud Shanks et Wrench Guilloud et Filliatre Guilloud et Dichampt Guilloud et Bouyer Miyoshi et Kanada Guilloud Tamura Tamura et Kanada Kanada, Yoshino et Tamura Ushiro et Kanada Gosper Bailey Kanada et Tamura Kanada, Tamura, Kobo et al. Kanada et Tamura Chudnovsky Chudnovsky Kanada et Tamura Chunovsky Kanada et Tamura Chudnovsky Chudnovsky Takahashi et Kanada Kanada Kanada RECORD ACTUEL

97. Íîâîñòè íàóêè The summary for this Russian page contains characters that cannot be correctly displayed in this language/character set. http://www.scientific.ru/journal/news/1202/n221202.html

p p Ìàòåìàòèêè èç ßïîíèè âî ãëàâå ñ Yasumasa Kanada äîñòèãëè ðåçóëüòàòà â 1 241 100 000 000 çíàêîâ ïîñëå çàïÿòîé ÷èñëà p p. Íàïðèìåð, ìîæíî èñïîëüçîâàòü ñëåäóþùåå âûðàæåíèå äëÿ ïîëó÷åíèÿ âåëè÷èíû arctg (x) ñ ëþáûì æåëàåìûì ÷èñëîì çíàêîâ ïîñëå çàïÿòîé òîëüêî ïóòåì óâåëè÷åíèÿ ÷ëåíîâ ðÿäà: arctg(x)=x-x /3+x /5-x /7+x p p= Óñîâåðøåíñòâîâàíèå êîìïüþòåðíîãî àëãîðèòìà îñíîâíûõ âû÷èñëåíèé òàêæå ñûãðàëî ñâîþ ðîëü â ïîëó÷åíèè ðåçóëüòàòà. Ïî ìíåíèþ Y. Kanada, åñëè áû ñîâðåìåííûé àëãîðèòì áûë èñïîëüçîâàí â 1999 ãîäó, òî äëÿ ðàñ÷åòà 206 ìèëëèàðäîâ çíàêîâ ÷èñëà p Ïîñëåäíÿÿ 1 241 100 000 000-íàÿ ðàññ÷èòàííàÿ öèôðà - ýòî öèôðà "5". Y. Kanada íà÷àë àíàëèç ñòàòèñòè÷åñêîãî ðàñïðåäåëåíèÿ âñåõ öèôð ÷èñëà p http://www.super-computing.org/pi-decimal_current.html p p p Bailey, D. and Crandall, R. On the random character of fundamental constant expansion. Experimental Mathematics p p p -còðàíèöó: http://www.cecm.sfu.ca/personal/jborwein/pi_cover.html Èíôîðìàöèÿ î Hitachi SR8000 äîñòóïíà íà: http://www.hitachi.co.jp/Prod/comp/hpc/eng/sr81e.html Ëàáîðàòîðèÿ Kanada èìååò ñòðàíèöó: http://www.super-computing.org/

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