Order of operations - what is 6÷2(1+2) ?

[rprosperi]

(01-04-2021 04:16 AM)WrongWay Wrote:  -2^2 on the 41CV evaluates to 4

No, that's not correct.

You have interpreted the algebraic equation shown there to be (-2) ^ 2 and you entered it as
2
CHS
ENTER
2
Y^X

which is not what is written, and that's what this entire discussion is about. If an equation is written in an ambiguous manner, the results are meaningless.

The above equation could also mean - (2^2) which would be -4; most systems that state the orders of precedence put exponentiation at a higher priority than unary negation, so the way I wrote at the start of this sentence would be the correct way to process it.

If the equation is ambiguous and precedence rules are not provided, a 'correct' answer is not possible, and it probably means someone is trying to lure you in to a conversation like this one.