Answer to Question #222459 in Algorithms for Tanvir

Question

Consider a vector V(24, 71). What will be the length of the orthogonal projection of

this vector along the direction of a unit vector u(0.6, 0.8)?

Answer 1

The length of the projection is

$$\vec{V} \cdot \vec{u}= 24*0.6 +71*0.8 =71.2$$