11 replies to this topic

[rjstephens]

ok people try this (on cfx)

-5 * -5

and now this:
-5^2

shouldn't the answers be the same?

[Andy.Davies]

what answers did u get? these are the answers i got:

-5 * -5 = 25

5 ^ 2 = 25 (its the same as 5 * 5)

2 ^ 5 = 32 (its the same as 2 * 2 * 2 * 2 * 2)

hope this helps

[X-thunder28]

euhh
I think if you have use the key and you can obtains different result because of priority of operation!

[CrimsonCasio]

no bug, I get the same answer on all my calcs (including a Ti-86)

but your right, -5*-5 is equal to -5^2, except it seems that the calcs want you to put it in () to count the - sign:

the calc is doing 5*5=25 *-1=-25. if you type (-5)^2 it gives the right answer.

in essence, its not a bug, just a format problem.

[PJay]

no bug, I get the same answer on all my calcs (including a Ti-86)

but your right, -5*-5 is equal to -5^2, except it seems that the calcs want you to put it in () to count the - sign:

the calc is doing 5*5=25 *-1=-25. if you type (-5)^2 it gives the right answer.

in essence, its not a bug, just a format problem.

(-5)^2 = 25 ,Yes?

-5^2 = -25 ,Yes?

[CrimsonCasio]

yep, thats right.

[Exca]

It's no bug, it's how math goes

If you calculate (manually) -5 ^2 without ( and ) then it is -25 as the minus affects the whole sentence and because of that it is like this: - 5 * 5
But when you have (-5)^2 then the -5 is multiplied with -5 and the answer is 25

[CrimsonCasio]

thats what I just said...

[betoe]

Yeah, when i read the first reply i think that it was an bug, i try on the CFX and the AFX2.0 , but its like:
(-1)*5^ 2= -25
((-1)*5)^2= 25

[Andy.Davies]

yeh, thats the same set of answers that i got on my FX-9750G

[Endi]

Gee... I've never thought that simple power results could cause so big discussion.
BTW: WHen I find the problem like -5^2 whilch can't solve with calc I don't waste my time and write 25 instead.

[Andy.Davies]

lol, trust some one to find the easy way out!