The axis angle of rotation is a result of Euler's theorem of rotation and it describes a rotation of a three dimensional rigid body by a unit vector
and an angle of rotation, .
Testing some escape charachters for html category with a generator has an injective cogenerator" now escape ” with "
![$\displaystyle \hat{e} = \left[ \begin{array}{c} e_1 \ e_2 \ e_3 \end{array} \right]$](http://images.physicslibrary.org/cache/objects/87/l2h/img1.png "$\displaystyle \hat{e} = \left[ \begin{array}{c} e_1 \ e_2 \ e_3 \end{array} \right]$")
