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Re: submission of a new problem; NDSolve artifacts; version 6.0.1

• To: mathgroup at smc.vnet.net
• Subject: [mg87014] Re: submission of a new problem; NDSolve artifacts; version 6.0.1
• From: Szabolcs Horvát <szhorvat at gmail.com>
• Date: Sat, 29 Mar 2008 04:22:07 -0500 (EST)
• Organization: University of Bergen
• References: <fsib5n$5ug$1@smc.vnet.net>

Robert M. Lurie wrote:
> I have been using NDSolve as used in
>  "Restricted Three-Body Problem in 3D" from The Wolfram Demonstrations 
> Project
>  http://demonstrations.wolfram.com/RestrictedThreeBodyProblemIn3D/
> Using Version 6.0.1,   I have modified the demonstration  to show the 
> classical planar, equal large masses (mu=1/2) cases as in Gass  
> "Mathematica for Scientists and Engineers: Using Mathematica to do Science"
> Also see  
> http://scienceworld.wolfram.com/physics/RestrictedThree-BodyProblem.html
> Depending on the values, there will be lines emanating from points where 
> orbits cross. For example at tf (final time) of 45.3, the figure below 
> is shown.  However at tf = 46 no such artifact is seen.
> How can NDSolve be modified to eliminate these artifacts?
> 


It is not possible to give an answer unless you tell us *exactly* how to 
reproduce the problem.  Just post a single Mathematica command that 
reproduces the problem.