Function: rnfisabelian
Section: number_fields
C-Name: rnfisabelian
Prototype: lGG
Help: rnfisabelian(nf,T): T being a relative polynomial with coefficients
in nf, return 1 if it defines an abelian extension, and 0 otherwise.
Doc: $T$ being a relative polynomial with coefficients
in \var{nf}, return 1 if it defines an abelian extension, and 0 otherwise.
\bprog
? K = nfinit(y^2 + 23);
? rnfisabelian(K, x^3 - 3*x - y)
%2 = 1
@eprog