Re: Solve & RotationMatrix

*To*: mathgroup at smc.vnet.net*Subject*: [mg76002] Re: Solve & RotationMatrix*From*: Mathieu G <ellocomateo at free.fr>*Date*: Mon, 14 May 2007 05:49:33 -0400 (EDT)*References*: <f21g0q$7d6$1@smc.vnet.net> <f23qq6$oa3$1@smc.vnet.net>

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. Regards, Mathieu