📅  最后修改于: 2022-03-11 14:56:13.711000             🧑  作者: Mango
代码示例1
\usepackage{amsmath}
\[ \begin{cases}
0 & x\leq 0 \\
\frac{100-x}{100} & 0\leq x\leq 100 \\
0 & 100\leq x
\end{cases}
\]