Latex公式测试 | Sensei's 部落格

Latex 公式测试

When $a \neq 0$ , there are two solutions to $(a x^{2} + b x + c = 0)$ and they are

x = \frac{- b \pm \sqrt{b^{2} - 4 a c}}{2 a}

Maxwell's equations:

equation	description
$\nabla \cdot \vec{B} = 0$	divergence of $\vec{B}$ is zero
$\nabla \times \vec{E} + \frac{1}{c} \frac{\partial \vec{B}}{\partial t} = \vec{0}$	curl of $\vec{E}$ is proportional to the rate of change of $\vec{B}$
$\nabla \times \vec{B} - \frac{1}{c} \frac{\partial \vec{E}}{\partial t} = \frac{4 π}{c} \vec{j} \nabla \cdot \vec{E} = 4 π ρ$	wha?