%beginning of the preamble
\documentclass[12pt]{article}

\usepackage{amsmath}
% comments use this sign
% \usepackage{mathpazo]

%margins
\usepackage[margin=1in,letterpaper]{geometry}
\title{An experiment Latex resume}
\author{LC}
\date{January 20, 2016}

% End of the preamble

\begin{document} % the document environment

/maketitle

Hello, \LaTeX!

Today is \today.% macro for today's date

\begin{abstract}
This is my abstract. A really short abstract.
\end{abstract}

\section{title of the section}

\subsection{name of the subsection]
% if don't want number in front of the subsection, use \subsection*{} instead of subsection{}

\paragraph{A note on periods}

Dr. A and Dr.B are good frinds.
This is a really long line, I really want to \\
break it.

Leaving an empty line in between begins a new line!
something here.\vspace{1in}something here too.
%\vspace leaves a giant space.

type something here.\hspace{0.5in} type something else here.
%hspace also leaves a giant space.

A little bit on the left, \hfill a bit on the right.

\newpage
This space left intentionally blank.

\vfill
All the way down here.

\section{math}

For $ x=1 \ldots 5+1 $, do something.
Another equation here: $ 1 + 2 \times 5 \div 6 = something $
To create a fraction do this: $ \frac{3}{2} 

\begin{equation}
\int^b_{2a}\frac{d\theta}{1+\theta^2} = \tan^{-1}b - \arctan{2a}
\end{equation}
\begin{equation}
e^{i\pi}+1=0
\end{equation}

\begin{align}
x^2 + y^2 = z^2\\
\sum_{n=0}^{\infty}\left( \frac{1}{2^n} \right) &= 2
\end{align}


\end{document}