• They do not

    says person who is unable to provide any evidence of such 🙄 guess what happens when you press the +/= followed by an x, it evaluates it and puts it on the stack 🙄

    Four-function calculators have an accumulator

    OMG. same same - it’s a one value stack 🤣🤣🤣

    RPN still does not have brackets

    In the foreground. They are still being added in the background

    It hasn’t magically sprouted them since I had to introduce you to the concept

    Which you didn’t, and they’ve always been there, just like the unwritten + sign in 3-2

    Computers mostly reduce bracketed notation to RPN

    No they don’t. They use the stack when parsing the expression, represented on paper with a binary tree

    2 2 3 + / doesn’t need anything “treated as though in brackets”

    Yes it does. It treats it as (2+3)/2 🙄

    unless you’re trying to explain it to a child who stubbornly insists there is only one way to do math

    So you’re admitting to being a child. That explains a lot 🤣🤣🤣

    yes-huh there must be brackets somehow

    Yep, now you’re getting it! 😂

    • mindbleach@sh.itjust.works
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      1 month ago

      It treats it as (2+3)/2

      It treats it as 2 2 3 + /. Push push push pop pop. There is no “background.” These are hardware functions.

      Do you think Spanish speakers secretly think in English? I don’t believe you understand there are multiple ways to do things. As if binary multiplication must be doing decimal multiplication “behind the scenes.”

      it’s a one value stack

      That’s not how a fucking stack works.

      • It treats it as 2 2 3 + /.

        Yep, it treats it as (2+3)/2, unless you’re saying it gets a different answer to that?? 🤣🤣🤣

        Push push push pop pop

        oh, look what came out of those first pops, 2+3, the part that is implicitly in brackets 😂

        There is no “background.”

        So you are saying it gets a different answer to (2+3)/2?? 🤣🤣🤣

        These are hardware functions

        And software controls what is happening with the hardware. pop is a software command to the hardware. I teach Computer Science as well 😂

        I don’t believe you understand there are multiple ways to do things

        says person who doesn’t understand that there is only one set of order of operations rules 🙄

        As if binary multiplication must be doing decimal multiplication “behind the scenes.”

        Other way around dude

        That’s not how a fucking stack works

        It is when you can only store one thing on it! 😂 I’ll take that as an admission you were wrong all along then

        • mindbleach@sh.itjust.works
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          1 month ago

          Did you know Russian has no indefinite articles? They’re not implicit. They’re just not there. It’s why stereotypical moose-and-squirrel impressions say things like “have nice day.”

          In exactly the same way, RPN doesn’t have implicit brackets, because it does not need brackets, period. It can equivalently express the operations of an algebraic equation which has brackets, but that doesn’t mean it has or uses or needs or implies those brackets. They’re just not there. Getting the right answer does not require secret translation to the one notation you understand.

          How would you treat someone who insists brackets don’t exist, because they’re only implicitly representing a stack? Like, you can write (2+3)/2, but that’s only doing 2 2 3 + /. Obviously brackets aren’t real.

          • because it does not need brackets, period

            It does if you want to get the answer to (2+3)/2 and not 2+3/2

            It can equivalently express the operations of an algebraic equation which has brackets

            There you go. Glad you finally worked it out 😂

            implies those brackets

            says person who just said it does 🙄

            They’re just not there

            Just like the + is “not there” in 3-2 🙄

            Getting the right answer does not require secret translation to the one notation you understand

            No, it requires obeying the rules 🙄

            • mindbleach@sh.itjust.works
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              1 month ago

              The answer to 2 2 3 + / does not involve brackets. Brackets aren’t real. Don’t you know all equations are secretly RPN, in the background? There’s only a stack, and the rules for a stack are that brackets do not work.

              • The answer to 2 2 3 + / does not involve brackets.

                (2+3)/2

                Don’t you know all equations are secretly RPN, in the background?

                No they aren’t liar. They are broken down into binary trees. I teach Computer Science as well dude.

                Here’s the binary tree for 2 2 3 + /

                Here’s the binary tree for (2+3)/2

                Oh look! it’s the exact same tree! Who woulda thought. Oh yeah, me - I’ve only been telling you that the whole damn time 😂

                There’s only a stack,

                Yep, that’s where things in brackets get put alright - see binary tree above😂

                the rules for a stack are that brackets do not work

                Except I just proved they do 😂

                • mindbleach@sh.itjust.works
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                  1 month ago

                  (2+3)/2

                  What is this irrelevant equation? We’re talking about 2 2 3 + /. There’s no tree, just a stack. Do you not know what words mean?

                  • What is this irrelevant equation?

                    You don’t know how to read infix notation?? THAT explains a LOT! 🤣🤣🤣

                    We’re talking about 2 2 3 + /

                    Yep, exact same equation - see the binary tree 🙄

                    There’s no tree, just a stack

                    Ok, so now you’re admitting to not knowing how programming works either. Got it.

                    Do you not know what words mean?

                    You clearly don’t! 🤣🤣🤣