Re: How can I graph a characteristic equation dx/dt=v?????
- To: mathgroup at smc.vnet.net
- Subject: [mg46560] Re: How can I graph a characteristic equation dx/dt=v?????
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Mon, 23 Feb 2004 22:33:42 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <email@example.com>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
HPerea at uswcl.ars.ag.gov wrote:
> I have a grid where I know the velocity v[x,t] in each node. What I want
> to do is to graph the characteristic equation dx/dt=v using the velocity
> values. I couldn't graph this equation correctly with Mathematica. In my
> problem, if v->0 the characteristic curve has to be vertical and if
> v->infinite the curve is horizontal.
> o (x2,t2)
> / |
> / |
> / | 1 This is a picture of my problem.
> / | I know the velocity at the point (x1,t1)
> / | but I don't know the point (x2,t2).
> (x1,t1) o ---------o
> 1 / v
> Do you think that I can graph the characteristic curves for this problem
> using Mathematica??
> I really appreciate your help....
> Hugo Perea-Estrada
> PhD. Student
> The University of Arizona
> Agricultural and Biosystems Engineering Department
> Email: HPerea at uswcl.ars.ag.gov
> hugop at ag.arizona.edu
> hugo at email.arizona.edu
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