• nLuLukna
    link
    1
    edit-2
    1 year ago

    Yeah but the way you derive the order of operations is way above the average maths student.

    I say that, but its not really that complicated to derive, since you think in terms of the expansion of the naturals to the reals

    My brain is fucking dumb

    • @[email protected]
      link
      fedilink
      21 year ago

      Im sorry, what? The order of operations is completely arbitrary, it just also happens to be the standart. Not having PEMDAS would simply mean we have to write equations differently. PEMDAS et al only exist to avoid ambiguity as in this image.

      • nLuLukna
        link
        11 year ago

        Yeah looking at my comment with fresh eyes, I really failed to say anything true.

        But I’m still going to say its not arbitary, since its super fucking convinent and it removes a lot of brackets.

        • @[email protected]
          link
          fedilink
          11 year ago

          By that reasoning, sure, it is not arbitrary, it might be the most efficient way to resolve things without complicating the notation we have to use. The point about it being arbitrary was more to say that there is no real mathematic basis for it, we have simply agreed to do it this way so everyone applyingnit arrives at the same “correct” solution.

          Arguably it has little value in algebra too, since it tends to be written less ambiguously, tho I have not had to really use algebra much since highschool (weirdly it was not a huge part of medschool, at least here, occasional use in chem and phys only).

    • Zoot
      cake
      link
      fedilink
      01 year ago

      If pemdas is above the average math student that’s fucked. I learned it in 5th grade.