> As for the "mathematical notation" argument, the proper interpretation I
have
> always and everywhere been taught is to place parenthesis around the
> statement.  I suppose the question if sign precedence is higher or lower
than
> the power in such a case seems to be a matter of opinion or common
agreements
> in certain groups rather than any standard.

Sorry about the talk-down language in the website, but I strongly believe
that the notational standard is that -2^2=-4 while (-2)^2=4.

http://mathforum.org/library/drmath/view/57375.html

N Shomber

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