Direction Field, Phase Portrait, and Solution Curves ( DEplot3d )
Replace the question marks ( %? ) in the following input regions to create the direction field for your model.
> DOMAIN := t = 0 .. 5.3 ; # specify reasonable interval for indep var
> WINDOW := x = -20 .. 20,
> y = -25 .. 25,
> z = 0 .. 50;
>
Phase Portrait
Solution Curves