Solution Curves

> IC := [ x(0) = -0.6, y(0) = 3 ] ; # specify an initial condition (not needed for direction field)

[Maple Math]

> P1:= DEplot( MODEL, VAR, DOMAIN, [ IC ],

> scene=[ t, x ], arrows=NONE, linecolor=BLUE ):

P2:= DEplot( MODEL, VAR, DOMAIN, [ IC ],

> scene=[ t, y ], arrows=NONE, linecolor=GREEN ):

> display( [ P1, P2 ] , title = `Figure 2.31 (b)` ); # combined solution curves

>