matrices in matrices

*To*: mathgroup at smc.vnet.net*Subject*: [mg53868] matrices in matrices*From*: mencinosa at comcast.net (mario encinosa)*Date*: Tue, 1 Feb 2005 04:08:18 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

i am hoping some of the experts can help me out. i calculate a bunch (144 to be precise) of 5 x 5 matrices to be used in an eigenvalue/eigenvector calculation in a full 60 x 60 matrix. i cannot seem to build the 60 x 60 in a way usable by Eigenvalues and Eigenvectors because when I try things like mat = {{M11, M12...}, ...} with or without Flatten, it leaves the matrix brackets intact. Any help would be greatly appreciated! Dr. Mario Encinosa Associate Professor of Physics 205 Jones Hall 850-599-8461

**Follow-Ups**:**Re: matrices in matrices***From:*Chris Chiasson <chris.chiasson@gmail.com>

**Re: matrices in matrices***From:*Gerry Flanagan <flanagan@materials-sciences.com>