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row,column question

• To: mathgroup at smc.vnet.net
• Subject: [mg73339] row,column question
• From: John Biddiscombe <biddisco at cscs.ch>
• Date: Tue, 13 Feb 2007 06:54:51 -0500 (EST)

If I have a 4x4 matrix and I postmultiply by {{1,0,0,bx}} I actually get 
something like col1 + bx*col4

Is there any way of telling Mathematica to show the result in a symbolic form using 
(for example, rows and columns) in this case.

NB. I've been playing with the AaddOn NCAlgebra, but not managed it with that 
either.

thanks

JB