modeling by means of differential equations, with critical remarks. Mathematical Assistant on Web Symbolic ODE tool, using Maxima Exact Solutions of Ordinary Differential Equations Collection of ODE and DAE models of physical systems MATLAB models Notes on Diffy Qs: Differential Equations for Engineers An introductory textbook on differential equations by Jiri Lebl of UIUC Khan Academy Video playlist on differential equations Topics covered in a first year course in differential equations. MathDiscuss Video playlist on differential equations