Emacs > AUCTeX
AUCTeX is an extensible package for writing and formatting TeX files in GNU Emacs and XEmacs. It supports many different TeX macro packages, including AMS-TeX, LaTeX, Texinfo, ConTeXt, and docTeX (dtx files).
Emacs 用の TeX, LaTeX, ConTeXt 入力支援環境.
コマンド補完などの機能を持つ.
M-x package-install RET auctex RET
あるいは
M-x list-packages RET でリストを表示して auctex を選択
GNU AUCTeX
ELPA
AUCTeX manual
GNU AUCTeX
ELPA