Re: Re: [Axiom-developer] Changing a variable type?

Themos Tsikas <[email protected]> Thu, 24 May 2007 09:15:44 +0000

Newsgroups	gmane.comp.mathematics.axiom.user
Organization	NAG Ltd
Message-ID	<[email protected]>

On Thursday 24 May 2007 08:46, Alasdair McAndrew wrote:

> Currently u is 3%C^2  + 2%C + 4, but I want to turn it into 3x^2+2x+4 over
> PF p.

Use the coordinates function to get the coefficients and then compose the 
polynomial?

(90) -> u

            3
   (90)  3%A  + 4%A + 6
     Type: FiniteFieldExtensionByPolynomial(PrimeField 7,?**4+?**3+?*?+4*?+1)
(91) -> coordinates u

   (91)  [6,4,0,3]
                                                    Type: Vector PrimeField 7

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