This is now http://trac.sagemath.org/sage_trac/ticket/14548 David
On Tue, May 7, 2013 at 3:58 PM, John H Palmieri <jhpalmier...@gmail.com>wrote: > > > On Tuesday, May 7, 2013 2:45:16 PM UTC-7, William wrote: > >> On Tue, May 7, 2013 at 2:10 PM, David Roe <roed...@gmail.com> wrote: >> > I find the following behavior to be quite confusing (and it just cost >> me an >> > hour tracking down). >> > >> > For consistency with multivariate polynomials, the coefficient method >> on >> > univariate polynomials (and power series) only returns the nonzero >> > coefficients. So: >> > >> > sage: R.<x> = ZZ[] >> > sage: (x^2+1).coefficients() >> > [1, 1] >> >> ACK. My feeling -- and my random testing of people just now -- is >> that this design is just a bug. Most people would expect >> "(x^2+1).coefficients()" to output [1,0,1]. >> >> Whose doing is this? >> > > <http://trac.sagemath.org/sage_trac/ticket/2081> > > I think that the docstring for "nonzero_coefficients" should also mention > the "exponents" method, since you will probably want to use them together > more often than not. > > -- > John > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-devel?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
