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Google was right the answer is -87
apparently the -3^2 means -(3)^2... how very misleading... I could see it meaning that if the -3^2 was somewhere not at the beginning of the problem... but.. -3^2 totally means 9 at the front... bah |
What I have not seen printed in this tome is what the "-" means (how to interpret). The majority of the posts seem to interpret - as minus. The fact is that a number, preceeded by a minus (-) must be interpreted as "the opposite sign of..."
Realizing this, without pantlegs (para.), -3^2 must be interpreted as the opposite sign of 3^2, which would be -9. Enjoy... |
I will forever now hate -3^2
but I do see where you get that -3^2 will be interpreted as the opposite.. |
You should hate it. In fact, I lied above.
It really depends on the interpretation of the sign, as you know. For example, in the forumula: sum(n=1..N) ( (-1^n)/n), -1^n clearly means (-1)^n. (Hopefully my terminology here makes sense.) Any FORTRAN programmers here? What would " - 3 ** 2" mean? I don't know of any other computer languages with a power operator, and really don't remember much FORTRAN; I took a class on it in '82 and haven't touched it since. |
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