Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2010

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: The formula of Abraham Moivre

  • To: mathgroup at smc.vnet.net
  • Subject: [mg106838] Re: The formula of Abraham Moivre
  • From: Peter Breitfeld <phbrf at t-online.de>
  • Date: Sun, 24 Jan 2010 05:44:55 -0500 (EST)
  • References: <hjeqep$g0p$1@smc.vnet.net>

Arnold wrote:

> How by means of Mathematica to transform (Cos [x] +I* Sin [x]) ^n in
> Cos [n*x] +I*Sin [n*x]?
>
> Thanks.
>

(Cos[x] + I*Sin[x])^n // FullSimplify // PowerExpand // ExpToTrig

-- 
_________________________________________________________________
Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de


  • Prev by Date: Re: The formula of Abraham Moivre
  • Next by Date: Re: The formula of Abraham Moivre
  • Previous by thread: Re: The formula of Abraham Moivre
  • Next by thread: Re: The formula of Abraham Moivre