Formula Sheet.tex

\documentclass[12pt]{article}
\usepackage{graphicx}
\usepackage{booktabs}
\usepackage{amsmath}
\usepackage[margin=1in]{geometry}
\usepackage{multicol}
\usepackage{setspace}
\usepackage{float}
\usepackage{array}
\usepackage{hyperref}
%\usepackage{times}
\usepackage{amsthm}
\DeclareMathOperator{\sech}{sech}
\DeclareMathOperator{\csch}{csch}

\title{Undergraduate Mathematics Formulae and Identities}
\author{Rutuj Gavankar \\ \email}


\newcommand{\email}{\centering \href{mailto:rsgavank@iu.edu}{rsgavank.edu}}
\newcommand{\diff}[1]{\frac{\mathrm{d}}{\mathrm{d}#1}}
\newcommand{\der}[1]{\, \mathrm{d}#1}
\newcommand{\laplace}[1]{\mathcal{L}(#1)}

\newtheorem{thrm}{Theorem}
\newtheorem{defn}{Defintion}

\begin{document}


\maketitle
\tableofcontents
\newpage

\input{sections/prealgebra.tex}
\input{sections/trig.tex}
\input{sections/vectoralgebra.tex}
\input{sections/limits.tex}
\input{sections/series.tex}
\input{sections/diff.tex}
\input{sections/int.tex}
\input{sections/transforms.tex}



\end{document}