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