: Unzip etex.zip into your local texmf tree (e.g., /usr/local/texlive/texmf-local/ or ~/texmf/ ).
: To enable new primitives, the first line of your source file should be \%\&etex or you must use a format file that has extensions enabled. 3. Key Extended Features etex.zip
: Allows for inline arithmetic using \numexpr , \dimexpr , \glueexpr , and \muexpr . : Unzip etex