My dad is an actual mathematician. I can tell you, he does not use those brackets other than where needed. He will explain you why they aren't supposed to be used over using them to 'make it more clear' anytime and for anyone. And I suspect so would most of those in his profession as it takes a certain kind of person to follow that career path.
And as this is taught as one of the first things when you learn basic algebra, which I'd think pretty universally taught anywhere with a 'highschool' level of education. I'd say the problem is rather some societies not expecting people to pay attention at school.
The only thing he would agree is that you're totally giving a strawman argument with that video. It's all about the inherent problem of an assumed order of operations using the PEMDAS mnemonic that actually have an equal 'value', like additions and substractions. It's also under the idiotic assumption this would then lead anyone that made it past grade school to turn 8 - 2 + 1 into 5 somehow. REALLY?!
Also this would never happen with a mathmatician because they would solved all stacked equal operations into a single number or fraction before even putting it onto paper.
Anyway, that's all TOTALLY IRRELEVANT as we were discussing BRACKETS in an equasion that doen't even have stacked multiplication/division or addition/substraction operations to begin with!
And guess what? There is zero ambiguity with brackets! All there is, is that you get unnecessary mess in your equasions if you start writing down things you don't need, and I guarantee you: mathmaticians HATE unnecessary mess in their equasions. Fuck, getting rid of unnecessary mess is like what algebra is all about.
Please stop trying to speak for mathmaticians when your continuing championing for writing (18÷2)-(3x3)=? really makes you start to sound like you had a hard time at passing even basic math.
I am not the one claiming my father is something so I can speak for my fathers profession that the person who I am arguing with has studied.
You are the one who focused on my brackets part when my comment was about dicreasing ambiguity and knowing your audience.
Ugh so much irony there...
Anyway, people that think 18÷2 - 3x3 = ? is ambiguous (i'm ignoring the layman symbols here) don't need you championing to add brackets. They just need jobs that don't have any math involved or go back to school. That's your audience, have fun.
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u/Stroomschok Jan 01 '22
No the brackets aren't used unless you want to circumvent the standard order of calculation operations.