2009/12/7 Matt Bainbridge :
> Hi there,
>
> Does anyone know if Sage has a function for computing the composition
> inverse of a power series (not the reciprocal)?
Yep, we have that:
sage: R. = QQ[[]]
sage: f = 1/(1-x) - 1; f
x + x^2 + x^3 + x^4 + x^5 + x^6 + x^7 + x^8 + x^9 + x^10 + x^11 + x^12
Hi there,
Does anyone know if Sage has a function for computing the composition
inverse of a power series (not the reciprocal)?
--Matt
P.S. Just started using sage and finding it very useful. Thanks for
developing it.
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