What programs do mathematician use to input mathematics? I am starting a graduate class this fall that requires our work to be typed and printed. My question is what is the standard application/site/way to do this? I am fairly used to $\LaTeX$ thanks to this site, but I don't exactly know how to get a document renderer that uses it.
I just want to write documents with the easy this site allows, would anyone please share method?
I would be quite grateful. Thank you!
 A: I use a website called ShareLatex, and I think it is wonderful.  There is no need to install anything on your computer, the compiler isn't picky and accepts just about any package I've ever tried to use, you can store all of your projects online, and their baseline site (which is enough for me) is free.
They even have templates you can use so you don't have to do too much work constructing a preamble.  Eventually, you should learn how to build your own preamble, but ShareLatex is a great way to get going right out of the gate.  Try it out!
I would recommend copying your code into your email every now and then, in case the site goes down and you lose all of your work.
A: What is used here is the same kind of mark-up used in $\LaTeX$ with mathematical notation, but $\LaTeX$ isn't just for mathematical notation.  For example, this document is written entirely in $\LaTeX$.  A $\LaTeX$ document begins with

\documentclass{article}[12pt]

or any of several other document classes, and has some global typessing conventions and the like after that, and then:

\begin{document}

and can include things like
'\begin{enumerate}
\item blah blah blah
\item blah blah blah
\end{enumerate}'
and all sorts of other stuff.  Probably you should get a manual.
A: I prefer using Writelatex.com . This is just the same way how we use commands in this site . 
Also we can save the pdf then and there
For introduction tutorial: Video
Website : writeLatex
Starter website: doc editor
