[SciPy-User] how to create a phase portrait for a nonlinear diff. eqn.

[Alan G Isaac]

On 1/4/2011 9:07 PM, Ryan Krauss wrote:
> how to put arrows on phase portrait lines to indicate the
> direction of the evolution over time.

http://matplotlib.sourceforge.net/examples/pylab_examples/quiver_demo.html

fwiw,
Alan Isaac