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Re: Storing matrices

  • To: mathgroup at smc.vnet.net
  • Subject: [mg79552] Re: Storing matrices
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Sun, 29 Jul 2007 00:09:27 -0400 (EDT)
  • References: <f8f2f5$t0v$1@smc.vnet.net>

Hi,

look what the package
<<Geometry`Rotations`

can do for you. The function

RotationMatrix3D[] will accept Euler angles.

Regards
   Jens

John Wallbank wrote:
> Hi, 
> I have created an animation which involves rotating things different amount depending on an arclength and a time. Unfortunately it takes ages for mathematica (5.2) to calculate these. Does any one know what the best way is for storing  ~4000 3 by 3 matrices. Also does mathematica have an algorithm for turning matrices in to Euler angles as it might be better to store them that way. 
> 
> Thanks
> John
> 


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