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

manuc66@programming.dev ⁨1⁩ ⁨month⁩ ago

• SmartmanApps@programming.dev ⁨4⁩ ⁨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.

  source

  • 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)

    source

    • SmartmanApps@programming.dev ⁨2⁩ ⁨weeks⁩ ago

      Maandelykse Mathematische Liefbebbery, Purmerende (1754-69)

      You know the Facebook post is in English and from 2025, right? 😂

      source
• Venator@lemmy.nz ⁨1⁩ ⁨month⁩ ago

  Except that it has English text above it…

  source