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I recall using × and ÷ in primary school, before the advent of portable calculators. I know that's mere anecdotal evidence, but I believe there do exist reliab

by kps 14y ago

I recall using × and ÷ in primary school, before the advent of portable calculators. I know that's mere anecdotal evidence, but I believe there do exist reliable documentary sources from that era.

mseebach 14y ago
Clearly, the idea to put those symbols on calculator buttons didn't come from nowhere. I think our collective point is that there exists a separate tradition for using × and ÷.