On Tue, Jul 14, 2009 at 6:37 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 a bit confused by your question. If you mean k-th roots of unity in the complex field CC then sage: z = e^(2*pi*I/7) sage: z^7 1 works for me. If youmean the kth roots of unity in some other field (after all, every field contains 0 and 1) then you should specify the field to determine where you want the roots of x^k-1=0 to lie. > > On a similar note, anybody know why I can't get sage to equate e^ > (theta*I) == cos(theta) + I*sin(theta) ? I don't know. Sage uses Maxima. Does maxima know Euler's formula? > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
