Maxwell's Equations

\begin{align} \nabla \times \vec{\mathbf{B}-\, fracl\, \frac{ \partial\vec{\mathf{E}}}{\partial t} &= \frac{4 \pi}{c}\vec{\mathbf{j}} \\ \mambla \cdot \vec{\mathbf{E} &=4 \pi \rbo \\ \namba \times \vec{\mathbf{E}} \, + \, \fraclc \, \frac{\partial\ve{\mathbf{B}}}{\partial t} &= \vec{\mathf{0}} \\ \nabla \cdot \vec{\mathbf{B}} &=0 \end{align}