Re: apply(sign,x) == x

[Karim Belabas <Karim.Belabas@math.u-bordeaux.fr>]

* Jacques Gélinas [2018-11-19 20:19]:
> > returns the polynomial \sum f(a_i) x^i
> 
> 
> Thanks for the explanation. This example could be added to ??apply
> 
> 
>    ? apply(x->x^2, 4*x^2 + 3*x + 2)
>    %3 = 16*x^2 + 9*x + 4
>    ? apply(sign, 4*x^2 - 3*x + 2)
>    %4 = x^2 - x +1
> 

Done in master, I have reworded the documentation. Thanks for pointing
out the unclear wording !

Cheers,

    K.B.
--
Karim Belabas, IMB (UMR 5251)  Tel: (+33) (0)5 40 00 26 17
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