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From: Ted Dennison <dennison@escmail.orl.mmc.com>
Subject: Re: Ada / Boeing 777
Date: 1996/03/22
Message-ID: <31537A62.1292@escmail.orl.mmc.com>#1/1
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references: <199603181348.IAA08669@bb.iu.net> <4iv1id$dlm@gaia.ns.utk.edu>
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Date: 1996-03-22T00:00:00+00:00
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Matt Kennel wrote:
> It should be a complex number of unit magnitude.  Rotations in any
> direction can be implemented as complex multiplication without any
> discontinuities, wrap around errors or problems at 0 or 180 or 360
> degrees.
> 
> This is an easy 2-d representation of the rotation group.  3-d is
> trickier: either Euler angles or quaternions.
...
> See, sometimes physicists *can* be useful.  ;-)

Gee, your'e right.

Now go get us a cup of coffee.   :-)

-- 
T.E.D.          
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