Y
Hacker News
new
|
ask
|
show
|
jobs
by
taybin
5044 days ago
According to this, multiplication wasn't so bad:
http://turner.faculty.swau.edu/mathematics/materialslibrary/...
2 comments
btilly
5044 days ago
Actually real Romans did multiplication on an abacus. Reading from Roman numerals to/from an abacus is an incredibly natural operation.
In Europe the disappearance of abacuses was directly tied to the rise of Arabic notation.
link
e12e
5044 days ago
Without a table? Just from memory? I think I'd prefer decimal.
link
In Europe the disappearance of abacuses was directly tied to the rise of Arabic notation.