In this case they may say something like: It is important to realize that this notation is NOT the magnitude of the vector F x and F y. The magnitude of a vector has to be a positive number.

Save guides, add subjects and pick up where you left off with your BBC account. (In contrast a scalar quantity has magnitude only - eg, the numbers 1, 2, 3, 4...) The ...

Save guides, add subjects and pick up where you left off with your BBC account. (In contrast a scalar quantity has magnitude only - eg, the numbers 1, 2, 3, 4 ...

“A vector is any quantity having direction as well as magnitude ... He believes Willard Gibbs' notation to be the simplest and most symmetrical of any of the existing kinds.