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MathGroup Archive 2001

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Re: vector field plotting

  • To: mathgroup at
  • Subject: [mg28487] Re: [mg28474] vector field plotting
  • From: Tomas Garza <tgarza01 at>
  • Date: Sun, 22 Apr 2001 01:30:18 -0400 (EDT)
  • References: <>
  • Sender: owner-wri-mathgroup at

Have you loaded the add-on Graphics`PlotField` prior to using
Try - on a fresh session, so as to avoid possible shadowing effects -

<< Graphics`PlotField`
PlotVectorField[{Sin[x], Cos[y]}, {x, 0, Pi}, {y, 0, Pi}];

It works like a beauty. Very likely you hadn't loaded the add-on when you
tried to PlotVectorField. If you ever run into this situation, i.e.,
invoking a function which belongs to some add-on package before loading it,
you must first Remove the function and then load the package. Otherwise, it
won't work. Look for "shadowing of names" in the Help Browser or in The

Tomas Garza
Mexico City
----- Original Message -----
From: "Julian Sweet" <jsweet at>
To: mathgroup at
Subject: [mg28487] [mg28474] vector field plotting

> I am trying to plot a vector field in cylindrical coordinates.
> The command "PlotVectorField" doesn't appear to be recognized by
> Mathematica. Is there any other easy way to plot a vector field?
> e-mail appreciated: jsweet at

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