Cosign Theta

A dot product is a measure of how aligned two vectors are exact. If they're pointing directlylike, in the same direction, the dot product is going to be at a maximum. The most important thing about a dot product is that when the two vectors are orthognal to each other, you get a dot product of zero. This is the exact moment at which, if you were to to me, it seems a little bit magical, you know.