Timeline for Eliminating NDSolve Instability
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Mar 6, 2016 at 14:51 | history | edited | bbgodfrey | CC BY-SA 3.0 |
improved format
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| Oct 8, 2015 at 16:01 | comment | added | bbgodfrey |
The solution still is unstable, although growing more slowly to of order 1000. It appears that the low PrecisionGoal causes NDSolve to use a very course mesh, which reduces the numerical instability growth rate. Thanks for trying, though.
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| Oct 8, 2015 at 15:48 | comment | added | user21 | Unfortunately, I was not able to come up with an alternative to reducing the precision goal. | |
| Oct 7, 2015 at 20:45 | history | edited | user21 | CC BY-SA 3.0 |
The privious answer was plain wrong.
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| Oct 7, 2015 at 20:41 | comment | added | user21 |
@bbgodfrey, I am sorry: What I posted is nonsense. It's a bit late here and I'll have a look tomorrow. The only thing I found so far is to reduce the PrecisionGoal->2 not ideal which I put in the answer now.
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| Oct 7, 2015 at 18:09 | comment | added | bbgodfrey |
This computation is even more unstable than the one in my question. Is it possible that one of the NDSolveValue parameters was copied incorrectly into the answer?
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| Oct 7, 2015 at 6:15 | history | answered | user21 | CC BY-SA 3.0 |