Compute non-linear Duffing equation solutions with the help of this software. Duffing Poincare model computes the solutions to the non-linear Duffing equation, which reads, x'' + 2 x' - x (1 - x2) = f cos( t), where each prime denotes a time derivative. The simulation displays the solution Poincare plot. The evolution parameters can be changed via textboxes. You can modify this simulation if you have Ejs installed by right-clicking within the plot and selecting "Open Ejs Model" from the pop-up menu item.

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this graphing software.