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Plots the solution curves of a user-input two dimensional system of autonomous differential equations. It has a reasonable parser, flexibility, and speed.
CLICK ON "SYSTEMS OF ODES" IN LEFT PANEL TO BEGIN. The first thing done is to rewrite the second order equation as a first order system and then the applet traces the solution through time.
User can enter (constant) coefficients for a second order differential equation with cosine forcing function and see the graph of the solution.
Enter (constant) coefficients for a first order autonomous system.
Applet that shows the poles of the Laplace transform in the frequency domain and the graph of the solution in the time domain simultaneously.
Eleven interactive activities from the definition to solutions of ODEs
Graphs solutions of diffusion equations over time. Interface could be smoother. You have to click at different points on the timeline to get things graphed - animation would be helpful.
A Java applet that allows one to interactively analyze systems of differential equations.
Free input phase plane of a system of ODEs
Six different portraits of a system of ODEs