MathGroup Archive: January 2009 [00076]

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Matrix-Multiplication w NonCommutative Entries?

To: mathgroup at smc.vnet.net
Subject: [mg95118] Matrix-Multiplication w NonCommutative Entries?
From: Thomas <t.isele at gmx.de>
Date: Wed, 7 Jan 2009 04:06:47 -0500 (EST)

Hi there, 
I want to multiply matrices with quaternionic entries in Mathematica. Dot (.) uses normal multiplication (*) for the entries. I need to change this to NonCommutativeMultiply (**) Then this would work with the Quaternions package.
Does anybody know, how to do this?

Thanks a lot,

Thomas

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