LaTex 数学常用编码
\lim_{x \to 0}
--> \(\lim_{x \to 0}\)
\frac{A}{B}
--> \(\frac{A}{B}\)
\sqrt{x}
--> \(\sqrt{x}\)
\backsim
--> \(\backsim\)
\lim_{x \to 0}
--> \(\lim_{x \to 0}\)
\frac{A}{B}
--> \(\frac{A}{B}\)
\sqrt{x}
--> \(\sqrt{x}\)
\backsim
--> \(\backsim\)