化学

LaTeX

$\oint\LaTeX\cdot dx=\infty$

$\begin{picture}(300,200)\setlength{\unitlength}{1mm}\put(50,20){\line(1,0){60}}\end{picture}$

$\color{cyan}イ_イ$ $\color{blue}レ_レ$ $\color{pink}イ_イ$ $\color{yellow}ナ_ナ$

$\Huge\color{yellow}{LaTex}$