Re: Train running cost

In standard math (AR * TS)^2 = AR * (TS^2) = AR * TS * TS. :)
It is all just multiplying, so it doesn't matter where are the
brackets, or if they are there at all.
You all should repeat basic school :)

On 11/3/05, Rob Hillis <rob-8lOKqkF7yUwdbCeoMzGj59i2O/[email protected]> wrote:
>
> > And I don't known if aerodynamic resistence is (AR * TS)^2 or AR * (TS^2), but
> > I think that (AR * TS)^2 is wrong.
> >
> I would have thought the aerodynamic resistance would have been (AR * TS^2)
>
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