Discuter:Dattatreya Ramachandra Kaprekar

Dictionnaire de mathématiques récréatives. Chiffraddition. Algorithme imaginé par D. R. Kaprekar qui permet d'établir des suites de nombres obéissant à une règle de formation précise. www.recreomath.qc.ca/dict_chiffraddition.htm

MATHEWS: Kaprekar Numbers Kaprekar Numbers. © Walter Schneider 2000. (last updated 27/12/2002) Kaprekar numbers are named by D.R. Kaprekar who presented them 1980 in the Journal of Recreational Mathematics. www.wschnei.de/digit-related-numbers/kaprekar-numbers.html

MATHEWS: Kaprekar Process. © Walter Schneider 2000. (last updated 27/12/2002) In 1955 the Indian mathematician D.R. Kaprekar published the following property of the number 6174: www.wschnei.de/digit-related-numbers/kaprekar-process.html

Kaprekar Routine -- from MathWorld The Kaprekar routine is an algorithm discovered in 1949 by D. R. Kaprekar for 4-digit numbers, but which can be generalized to k-digit numbers. mathworld.wolfram.com/KaprekarRoutine.html

The Kaprekar Numbers. Douglas E. Iannucci. The University of the Virgin Islands. 2 John Brewers Bay. St. Thomas, VI 00802. www.mat.ub.es/EMIS/journals/JIS/VOL3/iann2a.html

Kaprekar Number... The Indian mathematician D.R.Kaprekar made the following discovery in 1949 ... www.mathematische-basteleien.de/kaprekar.htm

Subject: Self Numbers. In 1949 the Indian mathematician D.R. Kaprekar discovered a class of numbers called self-numbers. www.johnlai.com/31337/data/4.html

NUMBERS AND COMPUTERS (7) by Albert N. Debono. KAPREKAR NUMBERS. Kaprekar numbers are defined as follows. Take the number 2223 as an example. ... is 95,121, the 30th 356,643, the 40th 648,648 and the 50th is 999,999. D.R.Kaprekar also noted the following curiosity ... numcom07 www.eng.um.edu.mt/~andebo/numbers/numcom07.htm

Conrad Roche on the The Kaprekar Series…Introduction to the Kaprekar Series Generator ... Well it is named after an Indian mathematician Mr. D.R. Kaprekar who discovered it ... kaprekar.sourceforge.net/intro.php

Self Numbers. In 1949 the Indian mathematician D.R. Kaprekar discovered a class of numbers called self-numbers. For any positive integer n, define d(n) to be n plus the sum of the digits of n. www.engr.orst.edu/~vulfson/problems.doc

Rules - Self numbers. In 1949 the Indian mathematician D.R. Kaprekar discovered a class of numbers called self-numbers. For any positive integer n, define d(n) to be n plus the sum of the digits of n. terje.dev.webon.net/golf?13

www.cs.uwaterloo.ca/~shallit/asbib/self.bib @article{Cai:1996b, key = "Cai 1996b", author = "T. ... article{Kaprekar:1956, key = "Kaprekar 1956", author = "D. R. Kaprekar", title = "Self-numbers", journal = SM, volume ... www.cs.uwaterloo.ca/~shallit/asbib/self.bib

Kaprekar Project Description on Sourceforge... file is dated May 7th, 2001 4:46 pm. D. R. Kaprekar found an interesting behaviour of four-digit number (say, 6349). Take ... kaprekar.sourceforge.net/archive/sfdescription.php

SourceForge.net: Get Support... Project description: D. R. Kaprekar found an interesting behaviour of four-digit number (say, 6349). Take any number ... sourceforge.net/support/getsupport.php?group_id=26832

Black History Month Activity Kaprekar's Constant. D.R. Kaprekar was born on January 17, 1905 at a place called Dahanu, near Mumbai, in India. As a child calculations were his hobby. He would spend hours on end trying to solve maths puzzles and problems. www.liz.richards.btinternet.co.uk/webpage4b.htm

Centre for Innovation in Mathematics Teaching - Competition 22 Prize Puzzle Competition 22. Closing date is 30th April 2000. 64. A 'Harshad number' has been defined as a number which can be divided exactly by the sum of its digits. ... (Harshad numbers were defined by D R Kaprekar (a mathematician from India) who also gave us ... www.ex.ac.uk/education/cimt/puzzles/comps/comp22.htm

Encyclopedia: Kaprekar number... References. D. R. Kaprekar, On Kaprekar numbers ... www.nationmaster.com/encyclopedia/Kaprekar-number

Math Forum: Teacher Support - Magic Number 6174... - Scientists of India - D.R. Kaprekar ... mathforum.com/pow/support/pow2.teacher.html

Earliest Known Uses of Some of the Words of Mathematics (D) ... The term DIGITADDITION was coined by D. R. Kaprekar, according to an Internet web page ... members.aol.com/jeff570/d.html

Self number - Wikipedia, the free encyclopedia... Discovered in 1949 by the Indian mathematician D.R. Kaprekar a self number or Colombian number is an integer which, in a ... en.wikipedia.org/wiki/Self_number

Kaprekar Series: 06/30/2004 ... Found a color photograph of D. R. Kaprekar on the net ... kaprekar.blogspot.com/2004_06_01_kaprekar_archive.html

AMTI - Historical Perspective... Prof.V.G.Bhide, NRL:D.R.Kaprekar PLBL:Dr.Jayant Narlikar ... www.amtionline.com/hispers.htm

ASSOCIATION OF MATHEMATICS TEACHERS OF INDIA... Prof.V.G.Bhide, NRL:D.R.Kaprekar PLBL:Dr.Jayant Narlikar ... education.vsnl.com/amti/his.html

The Awesome Library organizes 23,000 carefully reviewed K-12 education resources, the top 5 percent for teachers, students, parents, and librarians. It includes a search engine. ... A.S. Paintal, D.R. Kaprekar, Dr. Shanti Swarup Bhatnagar, ... www.awesomelibrary.org/Library/Local_Information/Asia/India.html

MATH 25 - HW: Week 2... If you haven't done so already, read the biography of D. R. Kaprekar on page 49 ... www.math.dartmouth.edu/~m25f98/week_2.html

Ancient Indian Mathematicians... Rao inequality", "Fischer -Rao theorem" and "Rao - Blackwellisation". D.R. Kaprekar (1905-1988) : Fond of numbers ... www.ilovemaths.com/ind_mathe.htm

www.research.att.com:9000/~njas/sequences/eisBTfry00041.txt Weisstein, <a href="http://mathworld.wolfram.com/PiContinuedFraction.html">Link to a section of The World of Mathematics

Formulating a Plan for Your Professional Future... This problem is named after the Indian mathematician D.R. Kaprekar who discovered it in the mid-twentieth century ... www.maa.org/features/professional_future.html

97 (number) - encyclopedia article about 97 (number). What does 97 (number) ...... self number Discovered in 1949 by the Indian mathematician D.R. Kaprekar a self number or Colombian number is an integer ... encyclopedia.thefreedictionary.com/Number%2097

MathGroup Archive (2000/01) - Cyclic decimal periods. Alan W.Hopper -- Tue, 11 Jan 2000 10:54:24 +0100 (MET) ... 2/ Cycles of Recurring Decimals , Vol I (1950), Vol II (1953) , \ D.R.Kaprekar. hilbert.math.hr/arhive/mathgroup/2000/01/0073.html

Great Brain Quiz 101 - Answers... 6174 (82) the Kaprekar Constant, discovered in 1949 by D R Kaprekar. www.bollands.demon.co.uk/gbq/GBQ101as.htm

Math words page 11... The numbers are named for D. R. Kaprekar who came up with the idea of searching for them. www.geocities.com/Paris/Rue/1861/arithm11.html

applesforhealth.com…Breaking news on health topics for your family, finances, lifestyle, and business provided by applesforhealth.com, a healthy knowledge source. ... A.S. Paintal, D.R. Kaprekar, ... www.applesforhealth.com/Classroom/Social_Studies/History/Biographies.html