Direction Field

> DOMAIN := t = 0 .. 2 ; # specify reasonable interval for indep vars

[Maple Math]

> WINDOW := y = -2 .. 2,

> v = -2 .. 2 ; # specify reasonable intervals for all dependent vars

[Maple Math]

>

> DIRplot := DEplot( MODEL, VAR, DOMAIN, WINDOW, arrows = MEDIUM,

> title = `Direction Field for #14(a)` ):

> DIRplot;

>