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Numerically Approximating the Wave Equation?
ObsessiveMathsFreak writes "I'm an applied mathematician who has recently needed to obtain good numerical approximations to the classic second-order wave equation, preferably in three space dimensions. A lot of googling has not revealed much on what I had assumed would be a well-studied problem. Most of the standard numerical methods, finite difference/finite element methods, don't seem to work very well in the case of variable wave speed at different points in the domain, which is exactly the case that I need. Are any in this community working on numerically solving wave equation problems? What numerical methods do you use, and which programs do you find best suited to the task? How do you deal with stability issues, boundary/initial values, and other pitfalls? Are there different methods for electromagnetic wave problems? Finally, when the numbers have all been crunched, how do you visualize your hard-earned data?"
My head hurts now..
Or perhaps you could modify the phase variance. That always works on TV.
You could try putting your question online as an Ask Slashdot post. Use the Submit Story link on the left. Good luck finding your answer!
Why bother.
way off dude... feynman did not invent monte carlo...
Ah, so that's where the sudden increase in spam comes from. Thanks!
regards,
Dr. Logan / Dr. Rammaha
Slashdot has been getting infested with non-nerds lately. We need some weed-out topics. They should appear as pop-up windows and pop-under windows in addition to appearing as normal articles. Nerds will only see one (very enjoyable) copy; non-nerds will face three terrifying articles that resemble the cruel word problems of their childhood.
I think he'd receive a lot more meaningful and helpful comments if he had placed his problem in context.
Such as:
- Numerically solving the wave functions describing the taut jiggle of Natalie Portman's bum.
- Mapping out the three dimensional wave constructs of that odd humming in your basement.
- Discovering the finite elements of romantic pursuit and the finite differences between romantic pursuit and stalking.
You know, when in Rome...
Operator, give me the number for 911!
Strange, My Scottish friend tells me that all useful inventions are socttish
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Oh no, the OP is a quiche eater. I was just worried he'd screw up the indices and post questions about why it doesn't work to slashdot.
We at slashdot are scientists, specialists and kernel hackers. Your FUD will be found out.
Just junk food for thought...