The behavior of .list() for power series also produces bugs in power series comparison. I filed a ticket and patch for this at
http://trac.sagemath.org/sage_trac/ticket/9457 but ran into unexpected problems in some of the elliptic curves code, because the p-adics in Sage are derived from the generic power series classes. So I'm all for a fix, but be warned that you might have to wrestle with p-adics. (Or maybe this has been improved in the intervening years!) -Niles On Tuesday, May 7, 2013 11:50:09 PM UTC-4, Nils Bruin wrote: > > On May 7, 2:10 pm, David Roe <roed.m...@gmail.com> wrote: > > For consistency with multivariate polynomials, the coefficient method on > > univariate polynomials (and power series) only returns the nonzero > > coefficients. > > Note that (x^2+1).coeffs() and list(x^2+1) do provide the desired > behaviour, so at least there's a workaround (don't use > ".coefficients()") > -- 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.