Comment on I dunno

• Alaknar@sopuli.xyz ⁨2⁩ ⁨months⁩ ago

  Division, Multiplication, Addition, and Subtraction

  This is fucking so many people over… It should be limited - like Orders - to only Multiplication and Addition.

  Because division is the same operation as multiplication, and subtraction is the same operation as addition, and they have the same “weight” in the order of operations (meaning, you do them left-to-right).

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  • KyuubiNoKitsune@lemmy.blahaj.zone ⁨2⁩ ⁨months⁩ 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 ⁨2⁩ ⁨months⁩ 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 ⁨2⁩ ⁨months⁩ ago

        People do be arguing, lol

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      • moriquende@lemmy.world ⁨2⁩ ⁨months⁩ ago

        Did you mean MD and DM?

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  • SmartmanApps@programming.dev ⁨1⁩ ⁨month⁩ 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 ⁨1⁩ ⁨month⁩ 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 ⁨1⁩ ⁨month⁩ 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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