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Re: Comparison of coefficients

• To: mathgroup at smc.vnet.net
• Subject: [mg91809] Re: Comparison of coefficients
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Tue, 9 Sep 2008 06:54:16 -0400 (EDT)
• References: <ga2pq1$p93$1@smc.vnet.net>

Hi,

Collect[#, Power[E, _]] & /@ ( a Exp[I k x] + b Exp[I k x] == 0)

??

Regards
   Jens

Kay-Michael Voit wrote:
> Hello,
> I'm trying to solve a PDE using a Exp ansatz.
> Now I am am stuck with the equation of the form
> a Exp[I k x] + b Exp[I k x] == 0 (though much more complicated)
> What I would like to do is a comparison of coefficients. How can I make
> Mathemetica to show me a form of the equation where I can easily read
> the comparison equations?
> (In the above equation
> (a + b) Exp[I k x] == 0
> for example.)
> 
> Regards
> Kay-Michael Voit
>