On 14/01/2011 21:14, James Newton wrote:
> So I tried getting excel to approximate the function 1132x^(-.5) as a pol=
y,
> but even with an order of 6, the poly is a poor fit. Excel won't do 8th
> order, but I doubt even that would have been good enough.

No real suggestions as the best way to do this (other than a large=20
lookup table type "thing"), just a random thought that you might want to=20
consider using  Scilab (or similar - Matlab if you wish to spend money=20
:-) ) instead of Excel to do your workings out, especially if things get=20
larger and more complex. I have recently started using it more often for=20
various stuff and after a bit of getting used to (Xcos in particular was=20
a bit tricky, but wonderful for modelling complex systems when you get=20
the hang of it) now I think it's great.


--=20
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