Thank you for you answer Robert Just the alternative to fetch_int I needed. The problem was that if you try to use fetch_int on a field of larger size than GF(5^5) e.g. GF(3^42), then SAGE will switch to PARI finite field objects and then the fetch_int will not work. But you small alternative sum do.
Thanks! /David On Oct 23, 4:54 pm, Robert Bradshaw <[EMAIL PROTECTED]> wrote: > On Oct 23, 2008, at 4:51 AM, David Møller Hansen wrote: > > > > > Is there a function for FiniteField_ext_pari objects that in the same > > way as "fetch_int" for the FiniteField_givaro objects can give me the > > field element representation of an integer? > > I'm not seeing which fetch_int you're referring to for > FiniteField_givaro objects, but you can do the same with > > sage: K.<a> = GF(5^5) > sage: K.fetch_int(159) > a^3 + a^2 + a + 4 > sage: sum([a^k*c for k, c in enumerate(159.digits(K.characteristic()))]) > a^3 + a^2 + a + 4 > > - Robert --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
