this post was submitted on 18 Dec 2025
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This isn’t even math, just convention on rules for order of operations.
The one response you got was just like, "But there's just ONE rule." totally missing your point.
Order of operations only has one rule: Bedmas (or pemdas if you're not from north america)
Huh it was always pemdas in both highschool and college in new England for me.... they were also always parentheses. 'Brackets' only reffered to '[ ]' which were reserved for matrices or number sets, eg 2*[2,5,8]+2= [6,12,18]
I think canadians call ( ) brackets in math
If you look at the arguments on math forums, you'll see that there isn't just one rule.
It is a convention, and different places teach different conventions.
Namely, some places say that
PEDMASis a very strict order. Other places say that it isPE D|M A|S, where D and M are the same level and order is left-to-right, and same with addition vs subtraction.And others, even in this post, say it's
PEMDAS, which I have heard before."Correct" and "incorrect" don't apply to conventions, it's simply a matter of if the people talking agree on the convention to use. And there are clearly at least three that highly educated people use and can't agree on.
But they all teach the same rules
Which is totally fine and works
Which is also totally fine and works
Also totally fine and works
No-one has to agree on any convention - they can use whatever they want and as long as they obey the rules it will work
Educated people agree that which convention you use doesn't matter.
That's not true Here is an example:
8÷2x4
PEMDAS: 8÷2x4 = 8÷8 = 1
PEDMAS: 8÷2x4 = 4x4 = 16
PE M|D A|S: 8÷2x4 = 4x4 = 16
And thats not even getting into juxtaposition operations, where fields like physics use conventions that differ from most other field.
but you're missing the point. It could be SAMDEP and math would still work, you'd just rearrange the equation. Just like with prefix or postfix notation. The rules don't change, just the notation conventions change. But you need to agree on the notation conventions to reach the same answer.