I think that:
* J = max (here = 2) if L and S are parallel and pointing in the same direction
* J = min (here = 0) if L and S are parallel and pointing in the opposite directions
* J is an intermediate value (here = 1) if L and S are perpendicular to each other
edit: I forgot to mention the vector sum similarity, which is what I based my reasoning on
This topic was modified 2 years, 6 months ago by sanfvers.