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Math - All those silly whats the right answer with order of operaiton

What retarded reddit BS is this. Who the hell doesn't know how to do order of operations properly.


Random internet BS once again.
 
NikolaeVarius said:
What retarded reddit BS is this. Who the hell doesn't know how to do order of operations properly.


Random internet BS once again.
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Probably most people who went to my high school, or any similar one. My high school maxed out math wise with a Pre Algebra class, I watched the 1st minute of the video, and this is clearly not any sort of math I could have learned unless I did it on my own outside of school.
 
But the video does make a point that I have said for years.

If a problem can be interpreted more than one way, then use parentheses. If there is any confusion as to the answer, then you have failed to produce a legible problem. The issue is with the problem creator, not the people performing the math.
 
thecoolnessrune said:
If a problem can be interpreted more than one way, then use parentheses.
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Bah, with the proper usage of PEMDAS that is already figured out. The idea of "implied" parenthesis is really a non issue ESPECIALLY with the authors conclusion in the video. Implied parenthesis means that we ARE just computers getting the answer. Write them, don't write them, I don't care. Given the equation, there is a specific way to get the answer (sure you can use distribution or whatever, but that does not change the rules).

It is really simple. At the same level of operators, solve the problem left to right. If the goal is to solve it some other way, write the parenthesis out (but we are still sticking with... PEMDAS to solve it).

However, I will say this: when I am programming and I am unsure how the mathematics will actually be done, you better believe I am going to either include parenthesis to dictate it, or break down the problem into miniature steps to ensure it is calculated correctly.
 
thecoolnessrune said:
But the video does make a point that I have said for years.

If a problem can be interpreted more than one way, then use parentheses. If there is any confusion as to the answer, then you have failed to produce a legible problem. The issue is with the problem creator, not the people performing the math.
Click to expand...

If you are confused then you were taught incorrectly. There is nothing wrong with the order of operations mnemonic PEMDAS as long as you know that multiplication and division as well as addition and subtraction are done left to right in the order they appear.

There is NO ambiguity or confusion in those who were taught correctly and learned what they were taught instead of texting their boyfriend about the latest Justin Bieber shenanigans during class.
 
Possessed Freak said:
However, I will say this: when I am programming and I am unsure how the mathematics will actually be done, you better believe I am going to either include parenthesis to dictate it, or break down the problem into miniature steps to ensure it is calculated correctly.
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It's sad you have to use parentheses when they shouldn't be necessary. Is it because you don't trust the person who wrote the interpreter or compiler properly with PEMDAS MD and AS in the order they appear left to right?

edit: note I'm not saying you're sad, I'm saying it's a sad commentary on society not knowing simple math to the point we mistrust compiler/interpreter language programmers to know and implement order of operations properly.
 
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disappoint said:
It's sad you have to use parentheses when they shouldn't be necessary. Is it because you don't trust the person who wrote the interpreter or compiler properly with PEMDAS MD and AS in the order they appear left to right?

edit: note I'm not saying you're sad, I'm saying it's a sad commentary on society not knowing simple math to the point we mistrust compiler/interpreter language programmers to know and implement order of operations properly.
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What? You think it might be also to make it about 100x easier to read what we write for things like debugging purposes?

I don't know about you, but I hate trying to figure out a long ass equation written in code that doesn't have parenthesis to help me figure out what is happening quickly and easily.
 
We learned BEDMAS in grade 7 and frankly I still don't get it. Algrbra has always been my kryptonite. I actually started university taking commerce. Could have been pulling in the big bucks today doing economics or accounting instead of reporting the traffic. Though I think I enjoy doing TV a lot more.

I suspect most people here are mathematically minded, given that many ATOTers are engineers and IT professionals. So what's presented in the video is obvious. Though for someone like myself, it isn't. Which is why I always got the wrong answer despite it being correct in my own mind. The problem is that advanced maths should be taught in the more simplified way as shown in the video. They focus too much on getting to an answer instead of explaining in easy to understand way why it is the answer. I also believe it shouldn't be taught until late high school. I've spoken about how the education system doesn't encourage mastery of a subject before moving on. Those who still struggle with the lower maths will be thrown to the wolves doing algebra.
 
NikolaeVarius said:
What? You think it might be also to make it about 100x easier to read what we write for things like debugging purposes?
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No I don't think that at all.

I don't know about you,
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Yeah I know, right?

but I hate trying to figure out a long ass equation written in code that doesn't have parenthesis to help me figure out what is happening quickly and easily.
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Something tells me you haven't done that as much as you'd like us to think you have.

Nested parentheses makes things easier. I read it on the forums once so it must be true.
 
I took pre algebra, algebra and advanced physics in high school and I was always, always taught to use parentheses. Please excuse my dear aunt sally. 🙂
 
When some people smile, they use parentheses. If your dear aunt sally knows why she frowns at those who can't solve 8-2+3 without frowning there are entirely too many uses of the word frown and it's conjugates in that last sentence.

8-5 is 3 so it should be pretty straight forward. Right? Right?
 
thecoolnessrune said:
If a problem can be interpreted more than one way, then use parentheses. If there is any confusion as to the answer, then you have failed to produce a legible problem. The issue is with the problem creator, not the people performing the math.
Click to expand...

You obviously have never coded in LISP.
More parentheses are NOT the solution to readability.
 
_Rick_ said:
You obviously have never coded in LISP.
More parentheses are NOT the solution to readability.
Click to expand...

Lol I had to LISP in college... I was surprised I ever got anything to work. I was actually decent at it by the end of the A.I class but I don't remember anything now. All I remember is that it was purely relational.
 
It is so fun, watching people complain "PROBLEMS NEED PARANTHESES".

Sure the person who created said question could have to made them a it simplier to read, however if they are not there, they are not. Read it using PEDMAS. That is the point. Every probelm is solvable reguardless of the adequet number of paratheses, or not. As long as correct math verbage/signage is used.

It is like reading a book. Same story conveyed over a picture book and short story with a higher language level. Easier way would be to do simple sentences and pictures (parantheses at every spot), however one does not get smarter for future problems that may occur if they cannot learn to read up at the next level.

Sure I am a no math expert, but even then I learned PEDMAS 4th? grade and it has never changed, very basics in math. It is only when multiple letters of the alphabet, greek alphabet, infinity signs, matricies, integral and derivative signs when math starts getting harder and when parantheses will not be used as much, especially since more complex engineering problems are so big, bulking them up with parantheses would hurt it more than help.
 
John Conner said:
I tried using parenthesis in my scientific calculator but it won't compute I get a syntax error???
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Whatever calculator that is should be airdropped in bulk as an aids package to terrorist organizations so they will never be able to make a nuke. Or anything else for that matter.
 
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