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/sci/ - Science & Math

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1173484 No.1173484 [Reply] [Original]

GUYS! Explain this to me please, My calculator says -2*-2=4 (obviously), why does it say -2^2 = -4?

Pic unrelated.

>> No.1173488
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1173488

>>1173484
>My face when this will be the most successful troll thread ever created

>> No.1173489

O.o

>> No.1173493

>>1173484
Order of operations.

Exponents come before negative signs (which is implicitly -1*number of choice).

Try using parentheses.

Inb4 calculator wars.

>> No.1173498

it reads that as -(2^2), not (-2)^2.

>> No.1173501

because you didn't put the -2 to in paranthesis. The calculator was correct, -2^4=-4.

>> No.1173502

It adds the minus sign after the equation, making it
(-)2^2=(-)4

You should do (-2)^2

>> No.1173505

BIMDAS

>> No.1173506

order of operations.

Use parentheses.

try (-2)^2

>> No.1173519

Thanks guys, cos... my mind was fucking blown.