Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

chchpugh

macrumors newbie
Original poster
Nov 19, 2007
1
0
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.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.