Question

hi!does someone know what is a scalar projection of a vector?

Answer 1

The vector projection of vector A onto vector B is the vector amount of A that lies in the direction of B. Decompose A into components parallel to and perpendicular to vector B. The magnitude of the parallel component times a unit vector in B's direction is the vector projection of A onto B. You can find the magnitude of the projection by taking the scalar or "dot" product of A and B: equal to the product of the magnitudes of the two vectors times the cosine of the angle between them.

Answer 2

thanks, but I wanted to know what is a scalar projection...

Answer 3

its just the magnitude of the vector projection

Answer 4

... just don't multiply it by the unit vector

Answer 5

you can use dot products, because the result is scalar product.