[Tex/LaTex] Best documentclass for formulary (cheat sheet)

document-classes

We are allowed to bring a formulary of 2 pages to our math exam. Obviously I need to put as much content on it as possible, using the tiniest font size available.
Unfortunately I haven't found a documentclass that suits my needs.
Currently I'm using this one:

\documentclass[10pt,a4paper,twocolumn,notitlepage]{article}

It has large margins, i.e. empty areas. Also, the font size is pretty large.

Is there any predefined documentclass for my purpose?

Best Answer

This uses a very small font size and small margin values by applying options to the geometry package.

\fontsize{6}{8}\selectfont is just one way to use (even smaller would be hardly readable, so it's not recommended)

multicols allows for organzing in multiple columns.

\documentclass{article}
\usepackage[a4paper, lmargin=0.2cm,rmargin=0.2cm,tmargin=1cm,bmargin=1cm]{geometry}

\usepackage{multicol}
\usepackage{pgffor}
\begin{document}
\pagestyle{empty}
\fontsize{6pt}{8pt}\selectfont

\begin{multicols}{8}
\foreach \x in {1,...,800} {

\(
E=mc^2
\)

}
\end{multicols}



\end{document}

enter image description here

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