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MathGroup Archive 1999

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Re: direction field plots

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19738] Re: direction field plots
  • From: phbrf at t-online.de (Peter Breitfeld)
  • Date: Mon, 13 Sep 1999 02:41:04 -0400
  • Organization: das ist ein breites Feld ...
  • References: <7relb5$dqs$3@dragonfly.wolfram.com>
  • Sender: owner-wri-mathgroup at wolfram.com

mpa3694 at earthlink.net <mpa3694 at earthlink.net> schrieb:
> I'm new to Mathematica and can't seem to find out how to plot
> direction fields for diff eq.  Can anyone help?  Thanks	
> 
use the function PlotVectorField. Suppose your diff eq. is
y'=f(x,y) then do

<<Graphics`PlotField`
In[1]:=PlotVectorField[{1,f[x,y]},{x,-3,3},{y,-3,3}]
Out[1]=Graphics

 Peter
-- 
=--=--=--=--=--=--=--=--=--=--=--=--=  http://home.t-online.de/home/phbrf  =--=
=--= Peter Breitfeld, Saulgau, Germany        PGP public key: 08548045  =--=--=



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