On Feb 2, 7:03 pm, Dima Pasechnik <dimp...@gmail.com> wrote: > Robert, > I don't understand what you suggest. > Try the following: > replace the line 10222 of sage/graphs/generic_graph.py > with > > sage: abs(M.determinant()) > > (the original line does not have abs()) and run > sage -t -long "devel/sage/sage/graphs/generic_graph.py" > > You should see the result above.
sage: C = graphs.CubeGraph(4) sage: G = C.automorphism_group() sage: M = G.character_table() sage: M.determinant() -712483534798848 sage: parent(M.determinant()) Cyclotomic Field of order 1 and degree 1 sage: type(M.determinant()) <type 'sage.rings.number_field.number_field_element.NumberFieldElement_absolute'> So M.determinant() is not an integer, it's an element of the "Cyclotomic FIeld of order 1 and degree 1". Maybe you could use one of these for your doctest: sage: M.determinant() == 712483534798848 or M.determinant() == -712483534798848 True sage: abs(M.determinant()) == 712483534798848 True -- John -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
