常用符号
| 写法 | 效果 |
|---|---|
| x_2 | x 2 x_2 x2 |
| x^2 | x 2 x^2 x2 |
| \rightarrow | → \rightarrow → |
| \overrightarrow{x} | x → \overrightarrow{x} x |
| \times | × \times × |
| \lambda | λ \lambda λ |
| \frac{2}{3} | 2 3 \frac{2}{3} 32 |
公式内实现换行
1 + 1 = 2
\\
1 + 1 = 2
2 + 3 = 5 1 + 1 = 2 2 + 3 = 5 \\ 1 + 1 = 2 2+3=51+1=2
矩阵
\begin{bmatrix}
1 & 2 & 3
\\
4 & 5 & 6
\end{bmatrix}
\tag{1}
[ 1 2 3 4 5 6 ] (1) \begin{bmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \end{bmatrix} \tag{1} [142536](1)
行列式
\begin{vmatrix}
1 & 2 & 3
\\
4 & 5 & 6
\end{vmatrix}
∣ 1 2 3 4 5 6 ∣ \begin{vmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \end{vmatrix} ∣∣∣∣142536∣∣∣∣
公式内对齐
\begin{aligned}
& 3 + 1 + 2 \\
= & 4 + 2 \\
= & 6
\end{aligned}
3 + 1 + 2 = 4 + 2 = 6 \begin{aligned} & 3 + 1 + 2 \\ = & 4 + 2 \\ = & 6 \end{aligned} ==3+1+24+26
大括号
\begin{cases}
2 + 3 = 5 \\
1 + 1 = 2
\end{cases}
{ 2 + 3 = 5 1 + 1 = 2 \begin{cases} 2 + 3 = 5 \\ 1 + 1 = 2 \end{cases} {2+3=51+1=2