请问如何引用人名？ 请问怎么制作表格？

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\begin{equation} \fraction{cough}{cough} \end{equation}

滚

\begin{equation} \frac{管理员+ \sqrt{站长VFK}}{UOJ} \end{equation}

\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{@lovelove}}}}}}}}}}}}}}}

@vfleaking VFK，啥时候资瓷一下评论删除/改动功能？

\frac{-b + \sqrt{b^2 - 4ac}}{2a}

\begin{equation} \frac{@Emily+ \sqrt{@lovelove}}{@101} \end{equation}

\begin{equation} \frac{@vfleaking+ \sqrt{管理员^5 - @lovelove}}{UOJ} \end{equation}

$\oint_lH\cdot d\iota =\iint_S J\cdot dS+\iint_s \dfrac{\partial D}{\partial t}\cdot dS$ $\oint_lE\cdot d\iota =- \iint_s \dfrac{\partial B}{\partial t}\cdot dS$ $\oint_s B \cdot ds = 0$ $\oint_s D \cdot dS = \iiint_V \rho dV$ $\nabla \times H =J + \dfrac{\partial D}{\theta t}$ $\nabla \times E =- \dfrac{\partial B}{\theta t}$ $\nabla \cdot B = 0$ $\nabla \cdot D = \rho$ $-\dfrac{\hbar}{2\mu}\nabla^2\varPsi+U\varPsi=E\varPsi$

\begin{equation} \frac{-b + \sqrt{b^2 - 4ac}}{2a} \end{equation}

\begin{equation} \frac{-ahsiasa + \sqrt{asjsa^100 - 4ac}}{100asjks} \end{equation}

\begin{equation} \frac{-sqoi * \sqrt{sjsjkk^2 / 121ascas}}{92920sjs} \end{equation}

\begin{equation} \frac{超级代码 + \sqrt{坎坎坷坷^哈哈 - 你以为呢}}{上世纪啊} \end{equation}

\begin{equation} \frac{撒\sqrt{洒洒水^2 - 萨克斯}}{睡觉奥吉卡斯} \end{equation}

前来考古，教程也太可爱了叭叭叭叭叭

\begin{equation} \frac{-b + \sqrt{b^2 - 4ac}}{2a} \end{equation}

[6](https://cdn.luogu.com.cn/upload/image_hosting/ukv9kx1j.png)

$\sqrt{}n$