Re: Magnetic Pendulum
- To: mathgroup at smc.vnet.net
- Subject: [mg62259] Re: Magnetic Pendulum
- From: "Kevin J. McCann" <kmccann at umbc.edu>
- Date: Thu, 17 Nov 2005 17:03:53 -0500 (EST)
- Organization: University of Maryland, Baltimore County
- References: <200511160728.CAA08482@smc.vnet.net> <email@example.com>
- Sender: owner-wri-mathgroup at wolfram.com
You should note that the first site, which actually shows a calculation,
is not actually doing a magnetic pendulum. The force law quoted is that
for an electrostatic pendulum. The magnetic force in the problem is a
dipole-dipole interaction, and that is not used on the website.
Igor Antonio wrote:
> Nice way of saying "don't ask us to do your homework for you," David. :-)
> Martin, show us your attempt at trying to do it and where you're having problems
> and then the newsgroup can help.
> David Park wrote:
>>Just start a Mathematica Notebook. Use Sections to organize your work.
>>Perhaps you will make a Statement of Problem section where you will define
>>your equations, parameters and initial conditions.
>>Then make a Solution Section where you will try to solve the equations using
>>NDSolve. Once you get your solutions you can try to plot them.
>>Maybe you will have additional Sections treating specific cases or classes
>>of cases. Maybe you will want to check simplified cases where the solution
>>reduces to an ordinary small oscillation pendulum.
>>You will probably have to use trial and error to get to a useful point. If
>>you have real trouble at some point, say with the differential equations and
>>how to feed them into NDSolve, post the equations and your attempt to this
>>group. There are many people here, not me, who know a lot about differential
>>equations and will probably give you good help. Post the code by converting
>>the cell to InputForm and then copying and pasting into a posting.
>>djmp at earthlink.net
>>rom: Martin Koschi [mailto:martin.koschi at gmx.net]
>>Hello, I have some questions.
>>Does somebody have the magneticpendulum problem solved as a mathematica
>>notebook, which he can send me?
>>If not can somebody explain my how i can solve that problem? I have to
>>simulate a magnetic pendulum in mathematica.
>>thx a lot
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