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Re: Shooting method

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  • Subject: [mg120979] Re: Shooting method
  • From: Michael Weyrauch <michael.weyrauch at>
  • Date: Sat, 20 Aug 2011 06:16:30 -0400 (EDT)
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  • References: <j2lea0$nfl$>

Well, the shooting method implemented in NDSolve works pretty nicely
for me. But without your program (eventually appropriately simplified to 
the essentials) it is hard to help you here.


Am 19.8.2011 12:35, schrieb Joao Pereira:
> Hi, I'm fairly new to Mathematica and I'm trying to solve a problem using the shooting method. I wonder if you could help me?
> I have a system of 6 nonlinear ODE of order 1, three of them have initial conditions, the other three have terminal conditions. I'm trying to use the shooting method to guess the 3 missing initial consitions. The problem I have is that I get several error messages regarding inderteminate expression/ComplexInfinity and Power::1/0 encountered. I also get a message of non numerical value found for a derivative at the intial period.
> I am not specifying guesses for the starting conditions, but I think Mathematica automatically does that.
> Bottom line, I do not know if the errors I'm finding are a result of a misuse of the shooting method, or if it is something wrong in the way the problem is specified.
> Best regards
> Joao Pereira

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