Now you can show the nullclines by
clicking
Solutions
and
Show nullclines
Or find an equilibrium point by clicking on
Find an equilibrium point.
A cross will appear and you will need to click on your window near the
point.
Pplane will display the linearization of that critical point and tells
you the type.
You can plot trajectories with a certain
initial condition by clicking on that coordinate on your pplane window.
Before that however, tell pplane to only compute the solution forward
in time
Finally, to get a trace of the
trajectory as time goes, choose
Graph and then
Both. After that, choose
which trajectory that you want to trace out.
