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MathGroup Archive 2004

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Re: quaternions

  • To: mathgroup at
  • Subject: [mg46721] Re: [mg46707] quaternions
  • From: Andrzej Kozlowski <akoz at>
  • Date: Tue, 2 Mar 2004 19:10:24 -0500 (EST)
  • References: <>
  • Sender: owner-wri-mathgroup at

On 2 Mar 2004, at 06:14, Edward Jones wrote:

> Does anybody know how to repesent and manipulate quaternions properly 
> using
> mathematica?
> Edward Jones.
You can try the Algebra`Quaternions` package.  If you want to do 
anything serious you will need to add your own programs, but the 
package is a good start. A few years ago I did some quite interesting 
computation with it. The problem was to find five distinct elements of 
SO(3) (the group of rotations of the sphere) whose sum is 0. The 
explicit answer can be found using a bit of geometry and the 
Quaternions package, and makes a good exercise for those interested in 
such things ;-)

Andrzej Kozlowski
Chiba, Japan

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      • From: "Edward Jones" <>
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