[SIGCIS-Members] How did the Incas calculate with yupanas?

Bernardo Batiz-Lazo bbatiz64 at gmail.com
Sun Feb 6 08:37:55 PST 2022


Hello Herbert 
It's a contested subject. But you might want to see the work of Gary Urton (Harvard) or Michael Hudson (Missouri @ Kansas City).
Hope this helps 
Bernardo 
(Northumbria)

Sent from my iPhone. Please excuse my brevity.

> On 6 Feb 2022, at 03:59, herbert.bruderer at bluewin.ch wrote:
> 
> 
> Dear colleagues:
> 
> The Romans used the abacus for calculations and recorded the results with Roman numerals.
> 
> The Incas recorded the values with quipus and calculated with yupanas.
> 
> Does anyone know how they calculated with these tools?
> 
> Many thanks.
> 
> Best wishes,
> 
> Herbert Bruderer
> 
> -- 
> Bruderer Informatik
> Seehaldenstrasse 26
> Postfach 47
> CH-9401 Rorschach
> Switzerland
> Telefon +41 71 855 77 11 
> 
> 
> Bruderer, Herbert [2020a]: Milestones in Analog and Digital Computing, Springer Nature Switzerland AG, Cham, 3rd edition 2020, 2 volumes, 2113 pages, 715 illustrations, 151 tables, https://www.springer.com/de/book/9783030409739
> 
> Bruderer, Herbert [2020b]: Meilensteine der Rechentechnik, De Gruyter Oldenbourg, Berlin/Boston, 3. Auflage 2020, Band 1, 970 Seiten, 577 Abbildungen, 114 Tabellen, https://www.degruyter.com/view/title/567028?rskey=xoRERF&result=7
> 
> Bruderer, Herbert [2020c]: Meilensteine der Rechentechnik, De Gruyter Oldenbourg, Berlin/Boston, 3. Auflage 2020, Band 2, 1055 Seiten, 138 Abbildungen, 37 Tabellen, https://www.degruyter.com/view/title/567221?rskey=A8Y4Gb&result=4
> 
>  
> 
>  
> 
> 
> _______________________________________________
> This email is relayed from members at sigcis.org, the email discussion list of SHOT SIGCIS. Opinions expressed here are those of the member posting and are not reviewed, edited, or endorsed by SIGCIS. The list archives are at http://lists.sigcis.org/pipermail/members-sigcis.org/ and you can change your subscription options at http://lists.sigcis.org/listinfo.cgi/members-sigcis.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sigcis.org/pipermail/members-sigcis.org/attachments/20220206/ec6c49ce/attachment.html>


More information about the Members mailing list