Angular Momentum

incomplete For Quantum Physics (not “real” angular momentum)

$$-\frac{{\hslash }^2}{2m}\nabla \Psi (x,y,z)+V(x,y,z)\Psi (x,y,z)=E\Psi (x,y,z)$$

For Theoretical Mechanics (classical physics)

$$\vec{L}=\vec{r}\times \vec{P}$$