\documentclass[fleqn,10pt]{olplainarticle}
% Use option lineno for line numbers
\usepackage[colorlinks=true, allcolors=orange]{hyperref}
\title{Example Article Title}
\author[1]{First Author}
\author[2]{Second Author}
\affil[1]{Address of first author}
\affil[2]{Address of second author}
\keywords{Keyword1, Keyword2, Keyword3}
\begin{abstract}
This is an example abstract. In general, your abstract should explain the main contributions of your article, and should not contain any material that is not included in the main text.
\end{abstract}
\begin{document}
\flushbottom
\maketitle
\thispagestyle{empty}
\section*{Introduction}
Thanks for using Overleaf to write your article. Your introduction goes here! Some examples of commonly used commands and features are listed below, to help you get started.
\section*{Methods and Materials}
You can easily include standard research article sections, such as this one.
\section*{How to add comments in Overleaf}
Comments can be added to your project by clicking on the comment icon in the toolbar above. % * <john.hammersley@gmail.com> 2016-12-03T09:54:16.211Z:
%
% Here's an example comment!
%
To reply to a comment, simply click the reply button in the lower right corner of the comment, and you can close them when you're done.
\section*{Some \LaTeX{} Examples}
\label{sec:examples}
Use section and subsection commands to organize your document. \LaTeX{} handles all the formatting and numbering automatically. Use ref and label commands for cross-references.
\subsection*{How to include Figures}
First you have to upload the image file from your computer using the upload link the project menu. Then use the includegraphics command to include it in your document. Use the figure environment and the caption command to add a number and a caption to your figure. See the code for Figure \ref{fig:letpub} in this section for an example.
\begin{figure}[ht]
\centering
\includegraphics[width=0.7\linewidth]{LetPub_Logo_hi}
\caption{An example figure using the LetPub logo.}
\label{fig:letpub}
\end{figure}
\subsection*{How to add Tables}
Use the table and tabular commands for basic tables --- see Table~\ref{tab:widgets}, for example.
\begin{table}[ht]
\centering
\begin{tabular}{l|r}
Item & Quantity \\\hline
Candles & 4 \\
Fork handles & ?
\end{tabular}
\caption{\label{tab:widgets}An example table.}
\end{table}
\subsection*{Mathematics}
\LaTeX{} is great at typesetting mathematics. Let $X_1, X_2, \ldots, X_n$ be a sequence of independent and identically distributed random variables with $\text{E}[X_i] = \mu$ and $\text{Var}[X_i] = \sigma^2 < \infty$, and let
$$S_n = \frac{X_1 + X_2 + \cdots + X_n}{n}
= \frac{1}{n}\sum_{i}^{n} X_i$$
denote their mean. Then as $n$ approaches infinity, the random variables $\sqrt{n}(S_n - \mu)$ converge in distribution to a normal $\mathcal{N}(0, \sigma^2)$.
\subsection*{Lists}
You can make lists with automatic numbering \dots
\begin{enumerate}[noitemsep]
\item Like this,
\item and like this.
\end{enumerate}
\dots or bullet points \dots
\begin{itemize}[noitemsep]
\item Like this,
\item and like this.
\end{itemize}
\dots or with words and descriptions \dots
\begin{description}
\item[Word] Definition
\item[Concept] Explanation
\item[Idea] Text
\end{description}
\subsection*{How to add Citations and a References List}
LaTeX formats citations and references automatically using the bibliography records in your .bib file, which you can edit via the project menu. Use the cite command for an inline citation, like \cite{greenwade93}, and the citep command for a citation in parentheses \citep{lees2010theoretical}.
You can upload a \verb|.bib| file containing your BibTeX entries, created with JabRef; or import your \href{https://www.overleaf.com/blog/184}{Mendeley}, CiteULike or Zotero library as a \verb|.bib| file. Just remember to specify a bibliography style, as well as the filename of the \verb|.bib|.
You can find a \href{https://www.overleaf.com/help/97-how-to-include-a-bibliography-using-bibtex}{video tutorial here} to learn more about BibTeX.
We hope you find Overleaf useful, and please let us know if you have any feedback using the help menu above --- or use the contact form at \url{https://www.overleaf.com/contact}!
\bibliography{sample}
\end{document}
