Re: matrices in matrices

*To*: mathgroup at smc.vnet.net*Subject*: [mg53885] Re: [mg53868] matrices in matrices*From*: Gerry Flanagan <flanagan at materials-sciences.com>*Date*: Wed, 2 Feb 2005 06:25:49 -0500 (EST)*References*: <200502010908.EAA15017@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Look into the standard package LinearAlgebra`MatrixManipulation` for the function BlockMatrix. It does what you want. Gerry F. mario encinosa wrote: >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 > > > > > > >

**References**:**matrices in matrices***From:*mencinosa@comcast.net (mario encinosa)