How does a vector differ from its projection?

1 Answer
Jul 26, 2015

A vector is specified by its components along the coordinate axes in a particular coordinate system.
A vector projection of a vector A along some direction is the component of the vector along that direction.
If A makes an angle #theta# with the direction in which we are to find it's projection and it's magnitude #A#, the projection is given as #A cos theta#.