Who was in the wrong here?

They are both correct in the context of the calculators' evaluation rules.

>>8995386

What's your stance on implicit multiplication?

Is 1/2πi = πi/2 or 1/2πi = 1/(2πi)

https://en.wikipedia.org/wiki/Order_of_operations#Exceptions

>>8995386
Casio was "wrong".
The standard way to do these operations is the aditions from left to right and then the multiplications from left to right.

>>8995393
>your stance
We at /sci/ don't take a "stance",
we examine data and develop a theory
to explain those data.
Lrn2science fgt pls

>>8995402
Pemdas mothercucker

>>8995386
What does the casio say when you put a * after the first 2?

File: 42642613254.png (849KB, 985x899px) Image search: [Google]

849KB, 985x899px

>>8995421
>he needs an acronym to perform basic operations

>>8995386
That's why I'm a TI boy

>>8995492
it's not even an acronym
technically it's a mnemonic
learn the difference

File: ghwKIoM[1].jpg (684KB, 2160x3840px) Image search: [Google]

684KB, 2160x3840px

>>8995386
That is one shitty calculator you got there OP

>>8995386
I thought everybody just wrote it out as a fraction and then there is no ambiguity. Why would you type it like that? Is there an actual reason why, other than to make these stupid threads?

>"I hate word problems, why can't the math teacher give us just equations to solve?"

>>8995643
>Is there an actual reason why, other than to make these stupid threads?
No. Most calculators would even give an error for an expression like that

>>8995386
1.
To get 9 you either use a fraction do describe 6:2 or parenthesis. Otherwise, the last number in that division is the one that is multiplied by (2+1)

>>8995724
you are mistaken. to get 9 the calculation resolves to 6/2 x 3, to get 1 the calculation is 6/(2x3)

an answer of 1 is "more" correct since the order or operations follows left to right, whereas 9 requires you to solve the furthest right multiplication before doing the division

>>8995741
that's exactly what I said you illiterate retard.

>>8995543
No, PEMDAS is an acronym. "Please excuse my dear aunt Sally" is a mnemonic

They both make sense in their respective contexts. When using a calculator, you obviously want order of operations. When designing a smartphone you want to make sure it evaluates from left to right, as they are made for the general brainlet public.

>>8995543
you are a retard

>>8995386
i hope for your sake that you don't use that casio

If the answer is 9 you have to answer the question by first doing 6/2 then multiplying by (2+1), however, if you are to multiply like that there would have to be parentheses around 6/2 in order to justify it, no way around it. If the answer is 9 then you are able to rewrite the question as (6(2+1))/2 or (6/2)(2+1) when it is obviously not intended to be written as that. Those are just shitty calculators that fuck up when doing basic algebra.

>>8995386

Hey look, it's another "order of operations matters outside of middle school math class" thread