What's the visual and mathematical difference between a vector projection of #a# onto #b# and an orthogonal projection of #a# onto #b#? Are they just different ways to say the same thing?
Despite that the magnitude and direction are the same, there is a nuance. The orthogonal-projection vector is on the line in which the other vector is acting. The other could be parallel
Vector projection is just projection in the direction of the other vector.
In direction and magnitude, both are the same. Yet, the orthogonal-projection vector is deemed to be on the line in which the other vector is acting. Vector projection may possibly be parallel