• copd@lemmy.world
      link
      fedilink
      English
      arrow-up
      7
      arrow-down
      2
      ·
      edit-2
      16 hours ago

      Technically there is a (x - 𝑥) in there. U+1D465 != x so this post is a little meh

      • MBM@lemmings.world
        link
        fedilink
        English
        arrow-up
        6
        ·
        10 hours ago

        Mathematicians do weird stuff to get more letters, but I’ve never seen anyone use x and 𝑥 for different things

        • joshthewaster@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          9 hours ago

          They also wouldn’t want to be ambiguous. If I was trying to write this problem the a, b, c… would get replaced by something like a_1, a_2,…, a_26 to be clearer. This problem works as a fun gotcha but isn’t something that would come up in the real world.