I saw in my textbook solutions that one can write $\underline m \cdot \underline r$ as $\underline m\:\underline r$ . Is this valid ?
Where $\underline m$ is a constant vector, $\underline r$ is the position vector and r is the magnitude of the position vector
Leading on from that, I want to know if $(r^2\underline m)=(r^2\cdot\underline m)$
Pls help. Thanks