Nullclines

It is difficult to give a general outline for the determination of nullclines. The key is to set each RHS equal to zero and find all curves on which the resulting equation is satisfied.

x-nullclines

y-nullclines

The complete nullcline plot is the union of the plots of the [Maple Math] - and [Maple Math] -nullclines.

> NULLplot:=display( [ xNULLplot, yNULLplot ], view=[ -5 .. 15, -5 .. 25 ], title=`Nullclines` ):

> NULLplot;

>