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Series expands a function, and also gives an idea of the asymptotic bounds of the function:

Series[$\frac{1-x^3}{1-x}$] returns: $1 + x + x^2 + O(x)^5$

I'd like to eliminate the big-Oh notation, to get, for example: $1 + x + x^2$

How can we eliminate/suppress the asymptotic bounds that Series returns?

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closed as too localized by Dr. belisarius, Michael E2, J. M. Apr 24 '13 at 15:48

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I think you can try Normal[%]. – user0501 Apr 24 '13 at 15:24
@user0501: Yes, that works. Thank you! – Matt Groff Apr 24 '13 at 15:27
@Szabolcs OK, I'll do that :) – user0501 Apr 24 '13 at 15:32
This is shown in the first two examples of the ref. page on Series. – Michael E2 Apr 24 '13 at 15:43

I think you can use Normal to do that:

Series[(1 - x^3)/(1 - x), {x, 0, 4}]

(*1 + x + x^2*)
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