Two rotation cycles: Click on the "radio buttons" as described below
l (left counterclockwise) A---->B---->C---->A
L = l-1 = l2(left clockwise) A---->C---->B---->A
r (right counterclockwise) C---->E---->D---->C
R = r-1 = r2 (right clockwise) C---->D---->E---->C
![]() | Michael Zuker Department of Mathematical Sciences Rensselaer Polytechnic Institute Spring 2008 |