On 5 September 2012 02:41, Cindy <cindy425192...@gmail.com> wrote: > Hi, David, > > Yes, that's what I mean. Can I find it using sage? > > Thanks. > > Cindy
sage: K.<z> = NumberField(x^3 - x + 17) sage: I = K.primes_above(17)[0] sage: K.trace_dual_basis(I.basis()) [4/132583*z^2 + 6/7799*z + 2597/132583, -153/7799*z^2 - 2/7799*z + 102/7799, -6/7799*z^2 - 153/7799*z + 4/7799] hth, David -- You received this message because you are subscribed to the Google Groups "sage-support" group. To post to this group, send email to sage-support@googlegroups.com. To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en.