[SciPy-user] nullclines for nonlinear ODEs
Tue Oct 30 11:28:49 CDT 2007
On 10/30/07, John Hunter <email@example.com> wrote:
> In a workshop on scientific computing in python I ran with Andrew
> Straw last weekend at the Claremont Colleges, I presented a unit on
> ODEs, numerically integrating the Lotka-Volterra equations, drawing a
> direction field, plotting a trajectory in the phase plane, and
> plotting the nullclines. For the nullclines, I used matplotlib's
> contouring routine with levels=, but I was wondering if there was a
> better/more direct route.
I should add, of course for the Lotka-Volterra equations one can
easily do this analytically, but I was trying to illustrate a general
approach for equations in which one could not necessarily write
analytic expressions for the nullclines.
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