• Which you said changed 130 years ago

        The definition of Division changed more than 130 years ago. a+b/c+d originally meant (a+b)/(c+d), but that limited you to one division per expression, so they changed the definition to be a+b/c+d=a+(b/c)+d, which brought it into line with all the other operators - the underlying Maths never changed, just the way we write expressions did

        • mindbleach@sh.itjust.works
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          19 hours ago

          Ohhh, so there is a difference between what’s in math(s) books and the underlying laws of reality. When it lets you scold people.

            • mindbleach@sh.itjust.works
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              19 hours ago

              Probably the part where you said how we write expressions is different from the underlying maths.

              Because words mean things.

              • Probably the part where you said how we write expressions is different from the underlying maths

                Yep, the underlying Maths is the same everywhere, because the rules are universal, but different countries have different notations, it’s still the same Maths

                Because words mean things

                And you seem to be having trouble understanding the difference between “notation” and “rules”

                • mindbleach@sh.itjust.works
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                  18 hours ago

                  My guy, you’re all over this thread hassling people as if there’s only one valid notation. I warned folks about your cocksure confusion of notation and rules two weeks ago, and your oblivious ass did exactly that in response to my warning.

                  You’re so confused about notation versus rules that you think RPN must have parentheses, somewhere, somehow, because they’re in the One True Notation.

                  I don’t think you understand being wrong, as a concept. Your brain slides right off it and circles back to a sequence of words that lets you be smug.

                  • only one valid notation

                    Only one valid set of rules you mean. Notation varies by country

                    I warned folks about your cocksure confusion of notation and rules

                    says person who is confused about the difference between notation and rules 😂

                    You’re so confused about notation versus rules

                    Nope! That’s you

                    RPN must have parentheses, somewhere, somehow, because they’re in the One True

                    Rules There you go confusing notation with rules again

                    I don’t think you understand being wrong, as a concept

                    says person who refuses to look in Maths textbooks 😂

                    Your brain slides right off it and circles back to a sequence of words that lets you be smug

                    And here you are writing a bunch of words and no Maths textbooks 😂