A graphic illustration of a right hand gently grasping a large arrow pointed diagonally upward. The thumb is up pointing in the same direction as the arrow. A smaller arrow underneath the hand indicates the direction to wrap the fingers around the large arrow. The title of the image is File:Right hand rule simple.png
3 points
I believe 3D graphics uses both to describe different coordinate systems (some are left handed and some are right)
6 points
