Fork of https://ankiweb.net/shared/info/1148323968 but with mathjax
| Front | Electron mass |
| Back | \(511 keV/c^2\) |
| extra_1 |
| Front | Gradient (cylindrical coordinates) |
| Back | \[\nabla f=\frac{\partial f}{\partial r}\mathbf{\hat{r}}+\frac{1}{r}\frac{\partial f}{\partial \phi}\boldsymbol{\hat{\phi}}+\frac{\partial f}{\partial z}\mathbf{\hat{z}}\] |
| extra_1 |
| Front | Quantum harmonic oscillator |
| Back | \[\hat{H}=\dfrac{\hat{\mathbf{p}}^2}{2m}-\dfrac{1}{2}m\omega^2\hat{\mathbf{x}}^2\]\[E_n=\left(n+\frac{1}{2}\right)\hbar\omega\]\[\psi_0(x)={\left(\frac{m\omega}{\pi\hbar}\right)}^{1/4}e^{-m\omega x^2/(2\hbar)}\] |
| extra_1 |