If you believe the article is incorrect, submit your corrections to Wikipedia
You know they've rejected corrections by actual Maths Professors right? Just look for Rick Norwood in the talk section. Everyone who knows Maths knows Wikipedia is wrong, and looks in the right place to begin with - Maths textbooks
Take it up with Berkeley then
What for? You're only the second person ever to have quoted him. You're not the first person to refuse to look in Maths textbooks though 🙄
I 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!" 😂
The rules are socially agreed upon
Nope! Universal laws.
They are not a mathematical truth.
Yes they are! 😂
There is nothing about the order of multiple different operators in the definition of the operators themselves
That's exactly where it is. 2x3 is defined as 2+2+2, therefore if you don't do Multiplication before Addition you get wrong answers
you can order those however you like.
No you can't! 😂 2+3x4=5x4=20, Oops! WRONG ANSWER 😂
All that matters is just what calculation it is that you’re after
And if you want the right answer then you have to obey the order of operations rules
Yeah, but even worse, you’re just talking about schools
I'm talking about anyone at all in the U.S. is allowed to teach Maths without any Maths qualifications
You forgot about all the kids being home schooled
That happens in other countries too, and yet it's the U.S. which has been sliding down the world rankings for more than a decade, the country that doesn't require Maths teachers to have Maths qualifications.
Also, it’s kinda obvious the rules of math aren’t different in the US
That's right, as proven by U.S. Maths textbooks
If people don’t know how to use math properly, the issue clearly is the education and not math itself
Partly right. there's also people who just outright forgot the rules.
Nope, that’s wrong
You think Maths textbooks are wrong?? 😂
See https://www.wolframalpha.com/input?i=10%2F2%282%2B3%29 for reference
See Maths textbooks for reference 😂
Post picture declaiming brackets as a multiplication symbol,
What do you think the "B" step in BEDMAS is for?? 😂
proceeds to solve the problem to the exact same solution using distributive law to
Distribute the coefficient over the terms inside the brackets
Fucking genius
Says someone who can't tell the difference between Distributing, 2(1+3)=(2+6), and Multiplication, 2x(1+3)=2x4, 1/(2+6)=(1/8), 1/2x4=2
In mathematics, a product is the result of multiplication,
or Factoristion, ab+ac=a(b+c) <== a Product of a and (b+c)
I mean, I don’t like to argue about this
And yet here you are arguing with someone who is and is a Maths teacher
there is an implied multiplication there.
Nope! It's a Term/Product. There's no such thing as "implied multiplication" - you won't find it in any Maths textbook
isn't a Maths textbook
In mathematics and computer programming, the order of operations is a collection of conventions
and rules 🙄 Haven't even got past the first sentence you quoted and it's already wrong
These conventions
Rules
but some programming languages and calculators
May disobey the rules and give wrong answers, like Texas Instruments calculators
With math, you can invent your own notation if you like
Yep, but you cannot invent your own rules 🙄
This is done often.
No it isn't.
And if it makes sense, you can also change the order of operation
No you can't, or you get wrong answers, like Texas Instruments calculators
The notation you learn in school is just a common one, but other notations are equally valid and can be useful
But the rules are universal. You seem to be confusing notation with the rules
Therefore this kind of question is not a pure math question
Yes it is
what kind of conventions or notations people want to use
We can see for ourselves quite clearly what notation they have used. There's no mystery or debate about it
The context is what allows the math question to have a single answer
The rules of Maths is what gives it a single answer - that's what they're for! 😂
The rules of math itself are much more fundamental and they don’t care about how people decided to write formulas down.
Yep, one of which is The Distributive Law, a(b+c)=(ab+ac).
Yes it does
Says person who can't cite a single example of it depending on the language 🙄
You already said that to me
And you're still ignoring it
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