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数学公式示例
基础公式
这是一个行内公式示例:E=mc^2
复杂公式
块级公式示例:
\int_{-\infty}^\infty e^{-x^2} dx = \sqrt{\pi}
矩阵示例
\begin{pmatrix}
1 & 2 \\
3 & 4
\end{pmatrix}$$
## 方程组
\begin{cases}
x + y = 5 \
2x - y = 1
\end{cases}