> For the complete documentation index, see [llms.txt](https://firefirebook.firefirestyle.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://firefirebook.firefirestyle.net/gravity/omakewoshitemiru.md).

# \[おまけ:距離を計算してみる]