Grapher does a nice job of outputting the integral curves (solution curves) of ODE's -- for example the saddle
x' = x and y' = -y.
But grapher doesn't put arrowheads on the curves to show which way the particles are moving. Is there a way to make it do so?
For the saddle, points on the x-axis move away from the origin, points on the y-axis move toward the origin, points in the first quadrant move along hyperbolas that descend toward the right, and so on. Grapher produces the curves but not the orientation.
x' = x and y' = -y.
But grapher doesn't put arrowheads on the curves to show which way the particles are moving. Is there a way to make it do so?
For the saddle, points on the x-axis move away from the origin, points on the y-axis move toward the origin, points in the first quadrant move along hyperbolas that descend toward the right, and so on. Grapher produces the curves but not the orientation.