Definitions for "Dot product"
a real number (a scalar) that is the product of two vectors
a cosine whether you are talking about vectors or quaternions
a single value (rather than a triple value such as the input vectors) which means that the Vector Product 's outputX , outputY , and outputZ attributes will all be set to the same number
Keywords:  thing, output, three, single, set
a single value, so all three output values x, y and z will be set to the same thing