3 ms·

Friend had a Japanese style abacus: https://en.wikipedia.org/wiki/Soroban#/media/File:Soroban.JPG https://en.wikipedia.org/wiki/Soroban#/media/File:Soroban.JP..

by JJMcJ 7y ago

Friend had a Japanese style abacus: https://en.wikipedia.org/wiki/Soroban#/media/File:Soroban.JPG https://en.wikipedia.org/wiki/Soroban#/media/File:Soroban.JP... I played around with it a bit, it was great fun but no match for Excel.

JJMcJ 7y ago
And there are abacuses very similar in usage in Roman times. The Japanese ones, conforming to stereotype, seem to be the most elegant.