$\TeX$ and $\LaTeX$

$\TeX$ is one of the masterpiece of Don Knuth.

At some point in the early 2000, I switched to $\LaTeX$ for convenience, and almost exclusively use the latter now. Most of this page

Tricks

To use footnotes to feature reference-style annotations, that is, with no subscripts and with enclosing brackets [1], add in the preamble:

\makeatletter
\renewcommand{\@makefnmark}
%{\@textsuperscript{\textit{\tiny{\@thefnmark}}}}
{[\@thefnmark]}
\renewcommand\@makefntext[1]{%
    \parindent 1em
    \noindent
    [\@thefnmark]\enspace #1}
\makeatother

(I left, commented, the original definition of the footnote).