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Mathematica

• To: mathgroup at yoda.physics.unc.edu
• Subject: Mathematica
• From: bse at ai.mit.edu (Brian Eberman)
• Date: Tue, 11 Jan 94 19:31:29 EST

I am looking for a symbolic linear algebra backage, (also possibly
multilinear algebra?) for Mathematica.  I would like to be able to
specify the properties of the elements of equations and get the
appropriate simplifications.  
For example if R is unitary
that R . Transpose(R) = Id.

Is any such package available?
I do not subscribe to the mathgroup so please respond directly if you
have any information.
Thanks in advance,
Brian  Eberman