Comment on I dunno

• SmartmanApps@programming.dev ⁨6⁩ ⁨days⁩ ago

  It should be limited - like Orders - to only Multiplication and Addition

  Because you don’t want people to know when to do Division and Subtraction? 😂

  Because division is the same operation as multiplication

  No it isn’t, but they are both binary operators.

  they have the same “weight” in the order of operations (meaning, you do them left-to-right)

  And where are they going to do Division and Subtraction in the left to right if you’ve left them out? 🙄

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  • Alaknar@sopuli.xyz ⁨6⁩ ⁨days⁩ ago

    Because you don’t want people to know when to do Division and Subtraction? 😂

    Because division is multiplication, and subtraction is addition.

    No it isn’t, but they are both binary operators.

    2/2 is the same as 2*½

    2-2 is the same as 2+(-2)

    And where are they going to do Division and Subtraction in the left to right if you’ve left them out? 🙄

    Well, as I already said multiple times: Division = Multiplication and Subtraction = Addition, therefore they would be doing them together, left to right. As in: 9-3+2 would not confuse anyone who learned “Addition → Subtraction”, as it does right now.

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    • SmartmanApps@programming.dev ⁨6⁩ ⁨days⁩ ago

      Because division is multiplication

      No it isn’t.

      and subtraction is addition

      And you still have to do both

      2/2 is the same as 2*½

      They’re equal in value, they’re not the same

      2-2 is the same as 2+(-2)

      You got that the wrong way around. Brackets have only been used in Maths for a few centuries now

      Well, as I already said multiple times: Division = Multiplication

      And you were wrong every time you said it.

      therefore they would be doing them together

      Not if you left them out of the mnemonic and they didn’t know when to do them

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      • Alaknar@sopuli.xyz ⁨5⁩ ⁨days⁩ ago

        No it isn’t.

        Yes, it is.

        And you still have to do both

        Quote the part where I said you didn’t.

        They’re equal in value, they’re not the same

        They are the same.

        You got that the wrong way around. Brackets have only been used in Maths for a few centuries now

        1. How is that “having it the wrong way around”?
        2. What does that have to do with the topic at hand? We’re talking about maths today, not centuries ago.

        And you were wrong every time you said it.

        No, they’re not.

        Not if you left them out of the mnemonic and they didn’t know when to do them

        Mnemonic without understanding what you’re doing doesn’t help. Which is why people get confused and argue online that you must do addition before subtraction, or the other way around, depending on what the mnemonic they learned was.

        Understanding that subtraction is just the addition of a negative number solves this problem.

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• KyuubiNoKitsune@lemmy.blahaj.zone ⁨3⁩ ⁨weeks⁩ ago

  Another commenter mentioned something similar, how they’re interchangeable, but I’m not sure why you say it’s fucking people over.

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  • Alaknar@sopuli.xyz ⁨3⁩ ⁨weeks⁩ ago

    Because the people who learn “MA” or “AM” then spend hours online arguing that you must do one before the other.

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    • KyuubiNoKitsune@lemmy.blahaj.zone ⁨3⁩ ⁨weeks⁩ ago

      People do be arguing, lol

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    • moriquende@lemmy.world ⁨3⁩ ⁨weeks⁩ ago

      Did you mean MD and DM?

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      • Alaknar@sopuli.xyz ⁨3⁩ ⁨weeks⁩ ago

        Yeyeyeye, sorry, long day.

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