Guidelines for writing clean and fast code in MATLAB

This document is aimed at all MATLAB users who are already familiar with the syntax but may not yet know the each and every pitfall of MATLAB programming. Its goal is to give a number of hints which enable the reader to write quality MATLAB programs and to avoid commonly made mistakes.
There are three major independent chapters which may very well be read separately. Also, the individual chapters each split up into one or two handful of chunks of information. In that sense, this document is really a slightly extended list of dos and don’ts.
This guide is written as part of a basic course in numerical analysis, most examples and codes will hence tend to refer to numerical integration or differential equations. However, almost all aspects are of general nature and will also be of interest to anyone using MATLAB.
Feel free to contribute at https://github.com/nschloe/matlab-guidelines.