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NDSolve limits

• To: mathgroup at smc.vnet.net
• Subject: [mg89081] NDSolve limits
• From: alrobnett <alrobnett at alumni.princeton.edu>
• Date: Sun, 25 May 2008 03:22:23 -0400 (EDT)

I am working on a three body orbit problem. My equations have resulted
in a beautiful 3D graph of the orbits, but only in one direction from
t=0. (I have boundary conditions only for t=0). I can get the orbits
for negative time by reversing all of the velocities, and I could
combine the results to get a graph from negative time to positive
time. Alternatively, I could use the results from the negative time
calculations to become initial conditions for a new calculation, but
these both seem like "klutsy" bandaids for the problem. Any
suggestions?

Allen Robnett