As someone whose spent way too long and way too much time in over my head with non linear systems ( this area has been trendy and fruitful in the quantitative finance community since hte late 90&#x27;s) I can second the post&#x27;s book recommendation....<p><a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Nonlinear-Dynamics-And-Chaos-Applications&#x2F;dp&#x2F;0738204536" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Nonlinear-Dynamics-And-Chaos-Applicati...</a><p>In fact everything by that author is great, buy and read it all:)<p><a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Steven-H.-Strogatz&#x2F;e&#x2F;B001KHB290&#x2F;ref=dp_byline_cont_book_1" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Steven-H.-Strogatz&#x2F;e&#x2F;B001KHB290&#x2F;ref=dp...</a><p>Just make sure you&#x27;ve read up on your differential equations before you start:)  This isn&#x27;t a topic for someone without a strong background in the mathematics!<p>Unfortunately I have yet to find a good introductory course, video, book, pdf....anything for this topic.  I had to jump in with a specific model in mind and keep banging away until I iterated my way towards the solution.<p>Suggestions for introductory material are welcome!!!