Quaternions etc.

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Quaternions etc.*From*: JWENDEL at isdmnl.wr.usgs.gov*Date*: Fri, 5 Jun 1992 10:32:01 -0700 (PDT)

How can I use NonCommutativeMultiply to define quaternions and other algebraic objects, e.g. groups? It would be wasteful, wouldn't it, to use the well-known matrix representations instead of NCM?