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From: lgbeard <lgbeard@bullreguard.nut>
Newsgroups: alt.ascii-art
Subject: Re: soroban (Japanese abacus)
Date: Sun, 17 Nov 2002 11:22:19 -0600
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On Sun, 17 Nov 2002 09:19:46 -0500, llizard <llizard@NOPOLLUTIONwildmail.com> wrote:

>In article <e316ra.r45.ln@adfpc.amp.uni-hannover.de>, Andreas Freise
><adf@mpq.mpg.de> wrote:
>
>>On 16 Nov 2002 llizard wrote:
>>> I am just relearning how to add and subtract on one of these fantastic
>>> devices:
>[snip of soroban]
>>So, how _does_ it work then?
>
>Lesson 2 (from llizard's bbackwards sschool of soroban)
>
>Example with subtracting 128 from 237 
>
>traditional method:
>
< snip > of a very nice tutorial

A history with a time line for the abacus. A
tutorial for the chinese abacus with ascii
diaghrams that someone has done in the past
http://fenris.net/~lizyoung/abacus.html#fig1


lgbeard