Begin forwarded message:
From: Adrian Freed <adrian@cnmat.berkeley.edu>
Subject: Re: more computations with movement salience
Date: 25 July, 2013 4:01:52 PM PDT
To: John MacCallum <john.m@ccallum.com>
Cc: Sha Xin Wei <shaxinwei@gmail.com>, "Andy W.Schmeder" <andy@cnmat.berkeley.edu>, Vangelis L <vl_artcode@yahoo.com>
John,
As I suspected, with the right algebra built into "o.", we can do all these movement things
we are trying to fudge with elementary stuff more compactly and richly.
I believe the best choice is the dual quaternion: http://en.wikipedia.org/wiki/Dual_quaternion