@[shicj](/user/678625)
1. `$\Complex$`，$\Complex$；`$\mathbb Q$`，$\mathbb Q$，KaTeX 文档无 ``\C`` 或者 ``\Q`` 的写法；
2. 是 ``aligned`` 不是 ``align``
by Ravener @ 2024-09-28 21:32:07
$\begin{aligned}3&=2+1 \\ &=1+2\end{aligned}$
`$\begin{aligned}
3&=2+1 \\
&=1+2
\end{aligned}$`
by Ravener @ 2024-09-28 21:33:21
@[Ravener](/user/956382) thx，原来是 $\LaTeX$ 和 $\KaTeX$ 不一样
by shicj @ 2024-09-30 19:03:02