微分方程
直接分离变量得
\[ p(x) \mathrm{d} x = \frac{1}{q(y)} \mathrm{d} y \]对两边积分即有
\[ \int p(x) \mathrm{d} x = \int \frac{1}{q(y)} \mathrm{d} y \]直接分离变量得
\[ p(x) \mathrm{d} x = \frac{1}{q(y)} \mathrm{d} y \]对两边积分即有
\[ \int p(x) \mathrm{d} x = \int \frac{1}{q(y)} \mathrm{d} y \]