Bill Allombert on Tue, 28 Sep 2004 20:18:17 +0200


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Re: Getting the variable of a polynomial 

On Tue, Sep 28, 2004 at 04:40:59PM +0200, Jeroen Demeyer wrote:
> Hi all,
> 
> Is there a way in GP to get the variable of a polynomial?  Something 
> like polvar(t^2 + t - 5) which would return t.  It would be very useful 
> to make polynomials (say, using Pol()) having the same variable as a 
> given polynomial.
> 
> I checked the documentation, but could not find it.

Did you try variable() ?

? variable(t^2 + t - 5)
%3 = t

Cheers,
Bill.