> For the complete documentation index, see [llms.txt](https://ayakaleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ayakaleaf-pro.ayaka.space/latex/zh-cn/latex-cuo-wu/23-misplaced-alignment-tab-character.md).

# 位置错误的对齐制表符字符 &

当对齐字符“&”使用不当时会出现此错误。对齐字符 *&* 用于在特定环境中对齐元素，例如 *矩阵*, *align*, *table* 等。

## 错误的常见原因

**未写 \\&：**

当你想在写作中把与号 *&* 当作文本字符使用时，例如在标题中，你必须写成 `\&`。如果你不这样做，就会出现如下所示的错误

```latex
公司名为 `Michael & Sons'
```

main.tex，第 5 行

对齐制表符字符 & 位置错误。

l.5 公司名为 \`Michael & Sons' 我不明白你为什么会想在这里使用一个制表符。如果你只是想要一个与号，解决办法很简单：现在只要输入 \`I\\&'。但如果上面某个右花括号过早地结束了前一个对齐，那么你大概还会收到更多错误信息，你可以试着现在输入 \`S'，看看还能挽救些什么。\[1

要修正此错误，请更改 `&` 更改为 `\&`.

**使用了矩阵宏，而不是 amsmath:matrix：**

在基本的 LaTeX 发行版中，有一个名为 *矩阵* 的宏。这通常会被错误地使用，而你真正想使用的是 *环境* 由 *amsmath* 包提供的

```latex
$$
\begin{matrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{matrix}
$$
```

那么就会出现一个 *对齐制表符位置错误* 错误信息。这是因为这并不是使用 *矩阵* 宏的正确方式。为了解决这个问题，只需加载 *amsmath* 宏包。

```latex
% 在导言区（\begin{document} 之前）
\usepackage{amsmath}

% 在文档中

$$
\begin{matrix}
1 & 2 & 3 \\
4 & 5 & 6 \\
7 & 8 & 9
\end{matrix}
$$
```

![Amsmathmacro.PNG](/files/f0fa6a778bd8e0ff9d5c2d1d65b03649366bfd52)


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