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Re: start question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg43681] Re: [mg43672] start question
  • From: sean kim <sean_incali at yahoo.com>
  • Date: Mon, 29 Sep 2003 01:47:57 -0400 (EDT)
  • Reply-to: sean_incali01 at yahoo.com
  • Sender: owner-wri-mathgroup at wolfram.com

hello

in 4.0 i Don't get anything with your code. 

PlotVectorField[{x, 1/y} , {x, 0, 3}, {y, 1, 3}];

gives the proper vector field. 

so does, 

f = {x, 1/y};
PlotVectorField[f , {x, 0, 3}, {y, 1, 3}];

it seem likes it has to do with the set delayed used
in function definition. Plotvectorfield probably needs
the evaluated function as it's argument... ( maybe) 


--- Young Kim <kim17 at fas.harvard.edu> wrote:
> Hi,
> 
>   I just started using mathematica 4.2
>   I was doing some vector field plotting like
> 
>   << Graphics`PlotField`
> 
> f[x_, y_] := {x, 1/y}
> PlotVectorField[f[x, y], {x, 0, 3}, {y, 1, 3}];
> 
> and I keep getting some error message saying that
> the definitions 
> overlap.
> when I tried Context[PlotVectorField]
> it gives me back global`
> 
> I am sort of lost and what should I do?
> Thanks.
> 
>   young
> 


=====
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I won't receive any replies sent to sean_incali at yahoo.com, instead they will get bounced to the sender.  

Reply to sean_incali01@yahooDOTcom.

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