[SIGCIS-Members] History of Rome. How did they calculate?

[James Cortada]

Well, if we going retro, I theorize it is the following that they used
since new thinking in Roman historiography suggests the Romans had contact
with Asian markets. Jim
[image: Screen Shot 2013-08-04 at 10.40.00 AM.png]

On Wed, Feb 20, 2019 at 3:07 PM Marc Weber <marcweber at att.net> wrote:

> Obviously, they used the Throbac;-)
>
>
> https://webmuseum.mit.edu/detail.php?term=shannon&module=objects&type=keyword&x=8&y=4&kv=75603&record=15&page=1
>
>
> On Feb 20, 2019, at 12:36, herbert.bruderer at bluewin.ch wrote:
>
> *How did the Romans calculate?*
>
>
> https://cacm.acm.org/blogs/blog-cacm/234881-how-did-the-romans-calculate/fulltext
>
>
>
> Hi all:
>
> Does anyone know how the Romans calculated with the Roman numeral system?
>
> What is the meaning of the right-most slot of the Roman hand abacus?
>
> Do you have Roman hand abaci (original devices or replicas) in your
> collection?
>
> Thank you very much for your help.
>
> Best wishes,
>
> Herbert Bruderer
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-- 
James W. Cortada
Senior Research Fellow
Charles Babbage Institute
University of Minnesota
jcortada at umn.edu
608-274-6382
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