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MathGroup Archive 2007

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Re: Solve & RotationMatrix

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76019] Re: Solve & RotationMatrix
  • From: Mathieu G <ellocomateo at free.fr>
  • Date: Tue, 15 May 2007 04:43:22 -0400 (EDT)
  • References: <f21g0q$7d6$1@smc.vnet.net> <f23qq6$oa3$1@smc.vnet.net> <f29bf2$pgm$1@smc.vnet.net>

Mathieu G a =E9crit :
> CKWong.P at gmail.com a =E9crit :
>> Obviously, you need to provide the function RotationMatrix[ angle,
>> axisVector ] for the algorithm to work.
>>
>> On the other hand, matrices for rotations about the Cartesian axes,
>> i.e., RotX,RotY, & RotZ, can be written done directly.  Why not do so?
>>
>>
> Hi,
> Thank you for your reply.
> I am not interested in a simple rotation matrix around an axis, but in
> finding the angles corresponding to a 3D rotation matrix.
> I compute VectN which is the vector normal to my surface, and I am
> interested in getting the rotation parameters that bring VectY to VectN=


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