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thiker
tril and thiker
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hello world. 你好世界。 It's so interesting!
math
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独立成段公式测试。
\[ J(\theta) = \frac 1 2 \sum_{i=1}^m (h_\theta(x^{(i)})-y^{(i)})^2 \]
\[ \begin{array}{c|lcr} n & \text{Left} & \text{Center} & \text{Right} \\ \hline 1 & 0.24 & 1 & 125 \\ 2 & -1 & 189 & -8 \\ 3 & -20 & 2000 & 1+10i \\ \end{array} \]
\[ \begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \\ \end{bmatrix} \]
行内公式测试\(a_n=\frac 1 \pi \int_{-\pi}^{\pi}f(x)dx\)
