What does vdp stand for? (Mathworks Example Simulation Model)

I was wondering why the models in the Mathwork Help Center are always called vdp.

This is pure curiosity and a little bit insecurity if I should use the same variable :)

Answer 1

[Steven Lord]

The vdp model is a simulation of the Van der Pol oscillator differential equation. It's a fairly simple model to create which is one of the reasons I believe it's used in so many examples in the documentation. It is also fairly simple to create as a MATLAB function, as shown in the vdp1 example file included in MATLAB.

Answer 2

[Ritvik Garg]

Van der Pol equation : The mathematical model for the system is a well known second order ordinary differential equation with cubic nonlinearity. You'll find this model used in many examples in MathWorks Documentation.

Also, to open the VDP-Simulink, run the below command by entering it in the MATLAB Command Window.

open_system(docpath(fullfile(docroot,'toolbox','simulink','examples','vdp')))

Note : Web browsers do not support MATLAB commands.

You can use 'vdp' as variable name because this is a model name, and not any function name.