Timeline for Problem using finite difference to solve a initial value problem
Current License: CC BY-SA 4.0
19 events
| when toggle format | what | by | license | comment | |
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| S Apr 27, 2023 at 20:28 | history | edited | Glorfindel | CC BY-SA 4.0 |
Corrected spelling
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| S Apr 27, 2023 at 20:28 | history | suggested | L_Green | CC BY-SA 4.0 |
Corrected spelling
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| Apr 27, 2023 at 18:21 | review | Suggested edits | |||
| S Apr 27, 2023 at 20:28 | |||||
| Aug 13, 2012 at 10:49 | comment | added | S. Carnahan♦ | In a deleted answer, user "clef" recommends scicomp.stackexchange.com | |
| Aug 1, 2012 at 13:37 | comment | added | timur | Can you please call my name (say @timur) if you answer, so I will get notified. | |
| Aug 1, 2012 at 13:36 | comment | added | timur | h against x or t? If the instability is caused by your numerical method or a bug, then from my limited experience I would expect the vertical scale to be completely crazy (like 10^10 or something). So this might be really what is going on. You said that it is model of an instability. This kind of behaviour is to be expected? | |
| Aug 1, 2012 at 11:35 | comment | added | gstar2002 | what I am plotting here is the height of the fluid surface. It is h in the equation. | |
| Aug 1, 2012 at 8:49 | comment | added | gstar2002 | It is a model of faraday instability in thin fluid film | |
| Aug 1, 2012 at 4:11 | comment | added | timur | What are you plotting here? What is the origin of this equation? | |
| Aug 1, 2012 at 1:26 | comment | added | Robert Israel | Do you have any reason to think that your system actually has smooth solutions? | |
| Aug 1, 2012 at 0:30 | comment | added | David Roberts♦ | I edited the title to remove a typo | |
| Aug 1, 2012 at 0:30 | history | edited | David Roberts♦ | CC BY-SA 3.0 |
Typos in title
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| Aug 1, 2012 at 0:18 | comment | added | gstar2002 | @Ryan, I edit my question. I hope that will turn it to a suitable question here. thanks | |
| Aug 1, 2012 at 0:16 | history | edited | gstar2002 | CC BY-SA 3.0 |
added 664 characters in body
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| Jul 27, 2012 at 16:20 | comment | added | Ryan Budney | MO isn't a place to diagnose software problems but you could make this into a suitable question but you'll have to supply more details. Could you tell us (1) exactly which differential equation are you studying and what are your boundary conditions? (2) Do you know precisely which method your software is using? `finite difference method' is very vague, to me at least. | |
| Jul 26, 2012 at 10:57 | comment | added | gstar2002 | I am asking about the theoretical reason. The ODE have up to third degree differential operators in it and it is nonlinear. | |
| Jul 26, 2012 at 5:55 | comment | added | David Roberts♦ | To clarify: are you asking about the theoretical reason why you get this result, or are you asking for help to use Matlab? The former question is on-topic, the latter is not, and a specialised Matlab forum might be better placed to help you. | |
| Jul 26, 2012 at 1:58 | comment | added | David Roberts♦ | This question could do with some improving. At present I don't know it fits in with MO's guidelines (but I'm happy to be corrected). | |
| Jul 26, 2012 at 0:50 | history | asked | gstar2002 | CC BY-SA 3.0 |