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Re: Eigenvalue Problem

• To: mathgroup at smc.vnet.net
• Subject: [mg32005] Re: Eigenvalue Problem
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Mon, 17 Dec 2001 06:01:37 -0500 (EST)
• Organization: Universitaet Leipzig
• References: <9vhn9j$du2$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

Hi,

for what do you need Mathematica ?
For a real matrix the matrix must symmetric,
for a complex matrix it must be hermitian.

Regards
  Jens

Steven Spear wrote:
> 
> Hi, could someone show me how to use Mathematica to sucessfully answer the
> following problem:
> 
> Show that the Eigenvalues of A =
> 
> [a][b]
> [c][d]
> 
> must be real numbers. Thanks, Steve