Re: [Maxima-discuss] Recognizing 1-variable polynomials ?

[David S. <d.s...@go...>]

Is z a literal z, or can it be any variable?
If literal, try polynomialp(P, [z], 'numberp). Otherwise, get the list of
vars using listofvars, check if its length is 1 and use that instead of [z].

Henry Baker <hb...@pi...> schrieb am Do., 24. Apr. 2025, 16:18:

> Is there a simple way to "recognize" a polynomial P(z) in a variable 'z'
> with *numerical* coefficients ?
>
>
> I'd like to write a routine that errs out if the input isn't a polynomial;
> if it has coefficients which aren't
>
> numerical; if it is a polynomial in the wrong variable, etc.
>
>
> I don't mind if the polynomial is in factored form or expanded form, or
> partially in between.
>
>
> I don't mind if the polynomial has to be expanded in order to be
> recognized.
>
>
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