Merge pull request #2 from icymist/latex

initial version for latex

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+---
+language: latex
+contributors:
+    - ["Chaitanya Krishna Ande", "http://icymist.github.io"]
+filename: learn-latex.tex
+---
+
+LaTeX is known to create aesthetically pleasing documents without you worrying
+about the formatting. It is also great if one wants to create documents
+containing a lot of mathematics. Getting a good document is very easy, but
+getting it to behave exactly the way you want can be a bit hairy.
+
+
+```latex
+% All comment lines start with %
+% There are no multi-line comments
+
+% LaTeX is NOT a ``What You See Is What You Get'' word processing software like
+% MS Word, or OpenOffice Writer
+
+% Getting to the final document using LaTeX consists of the following steps:
+% 1. Write the document in plain text
+% 2. Compile plain text document to produce a pdf
+%    The compilation step looks something like this:
+%    $ pdflatex your-tex-file.tex your-tex-file.pdf
+% A number of LaTeX editors combine both Step 1 and Step 2 in the same piece of
+% software. So, you get to see Step 1, but not Step 2 completely.
+% Step 2 is still happening behind the scenes.
+
+% You write all your formatting information in plain text in Step 1.
+% The compilation part in Step 2 takes care of producing the document in the
+% format you defined in Step 1.
+
+% For Step 1, it is best if you get a good text editor
+% On Windows, probably Notepad++
+% For Step 2, you will need to get a TeX distribution
+% Windows: MikTeX
+% MacOS: MacTeX
+% Linux: Should be available from your package manager
+
+% Let's get to the final pdf document as soon as possible
+
+% Choose the kind of document you want to write.
+% You can replace article with book, report, etc.
+\documentclass{article}
+% begin the document
+\begin{document}
+% end the document
+\end{document}
+% Compile to pdf
+% Now, you already have a final document which of course it is empty.
+% Everything that you write is between the
+% \begin{document}
+% \end{document}
+
+% Start a new document from here.
+% Let's do a decent document
+\documentclass{article}
+% required for inserting images
+\usepackage{graphicx} 
+% begin the document
+\begin{document}
+% set the title (optional)
+\title{Title of the document}
+% set the author (optional)
+\author{Chaitanya Krishna Ande}
+
+% make the title (optional)
+\maketitle
+
+% start the first section
+\section{Introduction}
+
+% write your text
+This is the introduction.
+
+% start another section
+\section{Another section}
+This is the text for another section.
+
+% another section with subsection
+\section{Section with sub-section}
+Text for the section.
+\subsection{Sub-section}
+Let's discuss the Pythagoras theorem.
+\subsubsection{Pythagoras Theorm}
+% for cross-reference
+\label{subsec:pythagoras}
+
+% notice how the sections and sub-sections are automatically numbered
+
+% Some math
+% Inline math within $ $
+For a right angled triangle (see Fig.~\ref{fig:right-triangle}) with sides $a$, $b$ and $c$, where $c$ is the
+hypotenuse, the following holds:
+% Display math with the equation 'environment'
+\begin{equation}
+    c^2 = a^2 + b^2.
+    % for cross-reference
+    \label{eq:pythagoras}
+\end{equation}
+
+% Let's cross-reference the equation
+Eqn.~\ref{eq:pythagoras} is also known as the Pythagoras Theorem which is also
+the subject of Sec.~\ref{subsec:pythagoras}.
+
+\subsubsection{Figure}
+Let's insert a Figure.
+
+\begin{figure}
+    \centering
+    \includegraphics[width=0.8\linewidth]{right-triangle.png}
+    \caption{Right triangle with sides a, b, c}
+    \label{fig:right-triangle}
+\end{figure}
+
+
+\subsubsection{Table}
+Let's insert a Table.
+
+\begin{table}
+\caption{Caption for the Table.}
+\begin{tabular}{ccc}
+Number &  Last Name & First Name \\
+\hline
+1 & Biggus & Dickus \\
+2 & Monty & Python
+\end{tabular}
+\end{table}
+
+% end the document
+\end{document}
+```