plot2d4 — 2D plot (arrows style)
plot2d4([logflag,] x,y,[style,strf,leg,rect,nax]) plot2d4(y) plot2d4(x,y <,opt_args>)
plot2d4 is the same as plot2d but curves are
plotted using arrows style. This can be useful when plotting solutions of
an ODE in a phase space.
By default, successive plots are superposed. To clear the previous
plot, use clf().
Enter the command plot2d4() to see a demo. Note that all
the modes proposed by plot2dxx (xx = 1 to 4) can be enabled
using plot2d and setting the polyline_style
option to the corresponding number.