RE: MadioLaTex--数学中国网页公式编辑器开放测试!(奖励矩阵币)
\[f(x) = \frac{1}{{2 - 3x + x^2 }} = \frac{1}{{1 - x}} - \frac{1}{{2 - x}} = \frac{1}{{2 - (x + 1)}} - \frac{1}{{3 - (x + 1)}}
\] http://latex.codecogs.com/gif.latex?%5Cint_%7B0%7D%5E%7B1%7D%7Bx%5E2dx%7D 成功喽成功喽 10# d1z2q3
http://latex.codecogs.com/gif.latex?\int_{2}^{6}{} \begin{cases}
\frac{di }{dt}=\lambda si-\mu i, & i(0)=i_0 \\
\frac{ds}{dt}=-\lambda si, & s(0)=s_0
\end{cases}