What is a vector, and how can we use it in electrical design? According to the “IEEE Standard Dictionary of Electrical and Electronic Terms,” a vector quantity is “any physical quantity whose ...

Alternate title: You Khan't Divide a Vector by a Vector. Get it? Maybe you don't, but that is ok. Really, I was going to make this a video critique of Sal Khan's – video critique of my video critique.

The only difference between velocity and speed is that velocity has a direction, and so is a vector quantity. Average velocity = \(\frac{\text{displacement}}{\text{time}}\) Displacement is the ...

The vector \(2k\) is twice as long as the vector \(k\). Double each number in \(k\) to get \(2k\). \(\mathbf{2k} = \begin{pmatrix} 6 \\ -4 \end{pmatrix}\) \(\mathbf{m ...