Cheatsheet.tex

% Use the "Template" class with specified options and set page margins
\documentclass[10pt,a4paper]{Template}
\geometry{left=1cm,right=1cm,top=1cm,bottom=1cm} % Set custom page margins

% Import packages for encoding, fonts, math, etc.
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[default]{lato}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{physics}
\usepackage{tikz}
\usepackage{relsize}
\usepackage{scalefnt}

% Beginning of the document
\begin{document}

% Reset page style
\thispagestyle{empty}

% The function \inputFile compiles the Cheatsheet based on the number passed:
% - \inputFile{0} compiles the 3 cheatsheets together
% - \inputFile{1} compiles the contents of cheatsheet "Linear Algebra.tex"
% - \inputFile{2} compiles the contents of cheatsheet "Multivariate Calculus.tex"
% - \inputFile{3} compiles the contents of cheatsheet "Principal Component Analysis.tex"
% Entering a number other than 0, 1 or 2 will generate an error message.
\inputFile{0}

% End of the document
\end{document}