Comment on I dunno
SmartmanApps@programming.dev 5 days agoI don’t think you understand mathematics above the 7th-grade level you brag about teaching
I don’t think you understand any of it, not even Year 7
No bona fides will excuse how you’ve acted; you have to be better
says person who refuses to look in Maths textbooks
RPN does not have parentheses
in the foreground. In the background it does or it would give wrong answers. You understand that apps can do things that you don’t see, right??
but different
Only the notation is different, the rules are the same
they deserve to know exactly how small-minded and stubborn you are
says the person who refuses to look in Maths textbooks 😂
as if they define knowledge
Textbooks do indeed define the notation and rules. 1+1=2 is defined as the notation to use to show that I had 1 thing and now I have 2 things
your own visible failure to teach anyone anything
says person ignoring all the people who actually did learn from me. That would be the people who are open to being wrong about how they thought it was done
Nobody’s walking away from these interactions like ‘oh thanks, good to know, that’s perfectly clear now.’
Yes they are! 😂
you’re assigning Buddha nature to parentheses
No, just literal textbook definition, which you refuse to look at 😂
1 2 + 3 * is not an equation with parentheses
So the app adds them in the background. Do you think apps don’t know how many “a” you’re talking about if you don’t write 1a? Guess what, it knows in the background that a=1a, and that the 1 in 1-2-3 is +1, etc. Not typing them in doesn’t mean they aren’t being added
The first time I explained this to you, you had never heard of it.
yet again you seem to have me confused with someone else. I have no idea what you’re talking about
You are a
Maths teacher
Trying to ‘no u’ about your absence of self-awareness does not work
says person who refuses to look in Maths textbooks
because you didn’t predict me
gaslighters gonna gaslight - there’s nothing unpredictable about that
What you’re doing is
teaching the rules of Maths
If this is how you teach children, it’s enforced learning by rote
No it isn’t, because they, having seen it also in the textbook, understand how it works
their understanding of even basic mathematics is permanently
improved, because they don’t sit there going “Nah nah nah, nah nah nah, I’m not listening and not looking in the textbook!” 😂
mindbleach@sh.itjust.works 5 days ago
…
You are functionally illiterate.
RPN is not an “app.” RPN is a NOTATION. That’s what the N is. It is a completely different way of doing math! It works on paper! You troll! It is a syntax for performing calculations using a stack-based method. There are no fucking parentheses - anywhere. It has no need for that concepts. Operations use the top values on the stack.
Do you know anything that’s not in a textbook for children?
SmartmanApps@programming.dev 5 days ago
says person who doesn’t understand how apps work
What do you think is behind the RPN calculators? A person?? 😂
Yep, so is ALGEBRA 😂 The rules are independent of both
Yep, notation, not rules
Nope! It’s only a different NOTATION - you just said that yourself! 😂
So does Algebra - surprise, surprise, surprise 😂
NOTATION
And I’m guessing you think there is no 1 anywhere in a+b, and there’s no + anywhere in 1-2
Which you could write explicitly with Brackets. 2 3 + 4 x = (2+3)x4
No it isn’t. 2 3 + 4 x gives the same answer as (2+3)x4, and 3 4 x 2 + gives the same answer as 2+3x4. Note that in the first example 2 3 + is effectively being bracketed, as otherwise you’d get a wrong answer by the order of operations rules
Yep, everything in high school Maths textbooks 😂
mindbleach@sh.itjust.works 5 days ago
Distribution is “effectively” multiplication. Nothing you say, nothing you point to, could possibly change that, because they will always get the same answer, and if getting the right answer is all that makes two things the same, then shut the fuck up.
SmartmanApps@programming.dev 5 days ago
No it isn’t, it’s Brackets. a(b+c)=(ab+ac) <== Brackets Now solve (ab+ac), or do you think that (8-5) is subtraction and not brackets? 😂 It’s actually the reverse process to Factorising, whereas Multiplication is the reverse operation to Division - not even remotely the same thing.
says person ignoring Maths textbooks 😂
Image
No they don’t! 😂 That’s why it’s a Law
1/a(b+c)=1/(ab+ac)
1/ax(b+c)=(b+c)/a
Oops! (b+c) went from being in the denominator to being in the numerator, leading to WRONG ANSWER 😂 Welcome to why we have The Distributive Law
No it isn’t, but that’s the first thing which has to happen. See previous point where they aren’t even the same answer, therefore one of them is wrong
says person still refusing to look in Maths textbooks 🙄