Dear Forum,
On May 13, 2013, at 5/13/13 4:39, "Ha T. Lam" <hat...@gmail.com> wrote: > I encountered a curious behavior when I tried to use IsAlgExtRep: > > x:=Indeterminate(GF(2), "x"); > f:=x^5+x^3+Z(2)^0; > gf:=GF(2,f); > prim:=PrimitiveElement(gf); > IsAlgExtRep(prim); > > In the above code, I expected IsAlgExtRep(prim) to return true, but it > tells me that it's false instead. If I change the polynomial to: IsAlgExtRep indicates whether an element is represented internally as element of a formal (quotient of polynomial ring) algebraic extension. Fields of order <=2^16 are represented using Zech logarithms, thus they are not IsAlgExtRep (their representation is `IsInternalRep'). Regards, Alexander Hulpke -- Colorado State University, Department of Mathematics, Weber Building, 1874 Campus Delivery, Fort Collins, CO 80523-1874, USA email: hul...@math.colostate.edu, Phone: ++1-970-4914288 http://www.math.colostate.edu/~hulpke _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
