Talk:Van der Pol oscillator

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[edit] stability

I think this should explain why the system is stable for mu > 1.

Perhaps the transfer function poles could be analyzed... —Preceding unsigned comment added by 99.235.199.57 (talk) 01:42, 5 February 2008 (UTC)

[edit] Adding more detail...

I modified the article twice (one is anonymous since I forgot to log in) and removed the forcing function from the right-hand side of the equation. I'll eventually add in a sentence or two explaining the subtraction/addition of energy to the system based on the magnitude of x and the qualitative difference between the limit cycles when epsilon << 1 and when it is larger (relaxation oscillations). The forced van der Pol oscillator should be the subject of a subsection of this article. Rompala

Accidently pressed save when checking for the last time so no comments on history. However, added short section on the forced oscillator, a history with a few uses and references and a section showing what happens to the unforced oscillator for varying values of mu.Kae1is 17:17, 17 November 2006 (UTC)