> 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/ja/to-2/87-why-can-t-i-use-bullet-without-getting-a-syntax-error.md).

# 構文エラーを出さずに \bullet を使えないのはなぜですか?

次の `\bullet` コマンドは数式モードでの使用のために定義されているので、次のように書く必要があります `$\bullet$` （または `\(\bullet\)`）を書いて、このコマンドを本文中で使用します。もし `\bullet` 数式モードの外で使用すると、次のエラーが発生します [`$ が挿入されていません`](/latex/ja/latexer/25-missing-inserted.md).

あるいは、 `\textbullet` コマンドは数式モード外でも、ドル記号や `\(...\)`を必要とせずに使用できます。以下の例で示します:

```latex
\documentclass{article}
\title{A random walk in \LaTeX}
\author{Overleaf Team}
\begin{document}
\maketitle
\section{In the beginning...}
この例では、数式モードで \verb|\bullet| を使用すると \(\bullet\) が生成され、数式モード外で \verb|\textbullet| を使用すると \textbullet も生成されることを示しています。
\end{document}
```

[この例を Overleaf で開く](https://www.overleaf.com/docs?engine=pdflatex\&snip_name=Using+the+bullet+command\&snip=%5Cdocumentclass%7Barticle%7D%0A%5Ctitle%7BA+random+walk+in+%5CLaTeX%7D%0A%5Cauthor%7BOverleaf+Team%7D%0A%5Cbegin%7Bdocument%7D%0A%5Cmaketitle%0A%5Csection%7BIn+the+beginning...%7D%0AThis+example+demonstrates+using+%5Cverb%7C%5Cbullet%7C+in+math+mode%2C+producing+%5C%28%5Cbullet%5C%29+and+%5Cverb%7C%5Ctextbullet%7C+outside+math+mode%2C+also+producing+%5Ctextbullet.%0A%5Cend%7Bdocument%7D)

この例では次の出力が生成されます:

![Overleaf で \bullet および \textbullet コマンドを使用する](/files/8003f6843d00f03d58294393acd130cca5474cc3)


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