Activated Mathematica Example 2:
Taken from
"3. More Examples"
In[25]:=
<<Local`NullclinePlot` NullclinePlot[{x^3 - 4 x y + 2 y^2 + y^3, -1 + x^2 + y}, {x, -2, 2}, {y, -2, 2}, Nullclines -> True, NullclineShading -> True, ShowEquilibria -> True, EquilibriumPointColor -> White];
If your output will be a sequence of graphs, select a display option.
Display as:
individual images
a movie
both of the above
