Function: algdegree
Section: algebras
C-Name: algdegree
Prototype: lG
Help: algdegree(al): degree of the central simple algebra al.
Doc: Given a central simple algebra \var{al} output by \tet{alginit}, returns
the degree of \var{al}.
\bprog
? nf = nfinit(y^3-y+1);
? A = alginit(nf, [-1,-1]);
? algdegree(A)
%3 = 2
@eprog