[Insight-users] regid transformation matrix

[Ruben Schilling]

Henry,

this is because rotation matrices are not anti-symmetric: -A^{T} = A  
because all elements on the main diagonal would need to be zero to  
fulfill this condition, which is obviously not the case for a  
rotation matrix in the general case. Your matrix seems to be correct  
(and is nicely symmetric by the way). Maybe you can share the  
particular (practical ?) problem you are dealing with, if there is any.

Regards
Ruben


Am 28.09.2007 um 18:58 schrieb Henry:

> Hi Ruben,
> Thanks for your reply.  I noticed it too but I am wondering why it is
> not antisymmetric...
>
> Henry