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Comment on A fake Facebook event disguised as a math problem has been one of its top posts for 6 months

SmartmanApps@programming.dev ⁨5⁩ ⁨weeks⁩ ago

÷ could be a minus sign

No it couldn’t.

en.wikipedia.org/wiki/Division_sign?wprov=sfla1

Did you check the reference? It says % can be used as a minus sign, not the obelus. Welcome to what happens when you’re next-door neighbour Joe Blow can edit Wikipedia.

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manuc66@programming.dev ⁨3⁩ ⁨weeks⁩ ago
Yes I did, on page 243:

It was employed in the Philosophical Transactions by the Dutch astronomer N. Cruquius; ÷ is found in Hübsch and Crusius. It was used very frequently as the symbol for subtraction and ``minus´´ in the Maandelykse Mathematische Liefbebbery, Purmerende (1754-69)

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- SmartmanApps@programming.dev ⁨2⁩ ⁨weeks⁩ ago
  
  Maandelykse Mathematische Liefbebbery, Purmerende (1754-69)
  
  You know the Facebook post is in English and from 2025, right? 😂
  
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