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\section{Quick Intro}  \authorea has deployed a new backend for its \latex input language, teaming up with the ambitious \latexml project, which strives to offer a full reimplementation of {\TeX} with targeted generation of web-first manuscripts, supporting HTML5 and ePub. Note: \latexml is the default engine for rendering {\TeX} in Authorea Beta articles. If you bump into any problems, make sure to visit your article settings and select your LaTeX renderer to \latexml. In this article you can find an overview of some of our new high-impact authoring features.  \textbf{Note}: this article does not cover mathematical notation. Check out \href{https://www.authorea.com/users/77723/articles/110898-how-to-write-mathematical-equations-expressions-and-symbols-with-latex}{this cheatsheet} and \href{}{these \href{https://www.authorea.com/users/3/articles/165181-latex-mathematics-examples}{these  examples} to see how LaTeX can be used to write advanced mathematics.