Date: 4/8/96 at 13:50:46 From: Anonymous Subject: Abacus Dear Dr. Math, Where can I find information on using a Chinese abacus? Christian
Date: 4/13/96 at 0:57:44 From: Doctor Jodi Subject: Re: abacus Hi Christian! The abacus is a nifty tool. Hope you get a chance to play with one soon. You can find some information about the abacus on the Web at http://www.ee.ryerson.ca:8080/~elf/abacus/ On this page, you'll find information about addition and subtraction with an abacus and a bit of its history. One printed reference I've just heard of is called _Abacus Arithmetic_ by Welton Crook, published by Pacific Books, Palo Alto, CA. I haven't had a chance to look at it, but Erez Kaplan, who is interested in the history of computing - which includes simple "computers" like the abacus - suggested it to me, with the warning that REALLY understanding an abacus will take both time and work. Good luck and let us know how it goes! -Doctor Jodi, The Math Forum
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