Re: Comparison of coefficients
- To: mathgroup at smc.vnet.net
- Subject: [mg91813] Re: Comparison of coefficients
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Tue, 9 Sep 2008 06:55:02 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <ga2pq1$p93$1@smc.vnet.net>
Kay-Michael Voit wrote:
> 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.)
You could use *Factor* as in
In[1]:= a Exp[I k x] + b Exp[I k x] == 0 // Factor
Out[1]= (a + b) E^(I k x) == 0
Regards,
-- Jean-Marc