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Given f, a polynomial over a finite field containing a primitive n-th
root of unity, return the Mattson--Solomon transform of parameter n.
Given A, a polynomial over a finite field containing a primitive n-th
root of unity, return the inverse Mattson--Solomon transform of parameter n.
We compute the Mattson--Solomon transform of parameter n=7 of the polynomial
x 4 + x 2 + x + 1 over GF(2 12).
> n := 7;
> K := GF(2, 12);
> FP<x> := PolynomialRing(K);
> f := x^4 + x^2 + x + 1;
> A := MattsonSolomonTransform(f, n);
> A;
x^6 + x^5 + x^3
Return the Krawchouk polynomial of parameters k and n in K over the
rational field.
Return the Krawchouk transform of the polynomial f over the rational field
with respect to the vector space Kn.
Return the inverse Krawchouk transform of the polynomial A over the
rational field with respect to the vector space Kn.
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