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

[herbert.bruderer at bluewin.ch]

Thanks. Possibly the Chinese took over the Roman abacus. There were indeed trade relations (e.g. Asia minor: Antikythera mechanism; silk road).
----Ursprüngliche Nachricht----
Von : jcortada at umn.edu
Datum : 20/02/2019 - 22:11 (MZ)
An : marcweber at att.net
Cc : herbert.bruderer at bluewin.ch, members at sigcis.org, members at lists.sigcis.org
Betreff : Re: [SIGCIS-Members] History of Rome. How did they calculate?
 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
 
  
   
   
  
 
 
  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
  
  
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