On Jul 14, 11:37 am, mac8090 <bonzerpot...@hotmail.com> wrote: > For a given k, is it possible to instantly get an k-th root of unity > in sage without making extra fields, or by using e^(2*pi*I/k)?
I'm curious why you are so opposed to creating a number field. Basically, there are three one-liners you can use: CyclotomicField(k).gen() -- creates a number field element. CC.zeta(k) -- creates an inexact, fixed-precision approximation. QQbar.zeta(k) -- a clever hybrid, which behaves like an element of CC but also remembers that it's algebraic and can calculate itself to arbitrary precision if you ask it to. David --~--~---------~--~----~------------~-------~--~----~ 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 For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
