MathGroup Archive 1999

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Vector Field

  • To: mathgroup at smc.vnet.net
  • Subject: [mg16167] Vector Field
  • From: Luke <ma95ldt at brunelDOTac.uk>
  • Date: Tue, 2 Mar 1999 01:13:14 -0500
  • Organization: Brunel University, Uxbridge, UK
  • Sender: owner-wri-mathgroup at wolfram.com

I am trying to create a picture of a sphere with Normal vectors on the
surface to demonstrate the Divergence Theorum. I am quite new to Mathematica
and I was wondering if it could be done.

I have created the sphere using:

ParametricPlot3D[{Sin[x]*Cos[y],Sin[x]*Sin[y],Cos[x]},{x,0,Pi},{y,0,2*Pi}]

I am hoping to be able to use PlotVectorField3D to create a vector field and
overlay in on the image using Photoshop where I could remove the vector
which should not be in view. I'm not sure how to plot the field desired.

Anyone have any suggestions?

Luke




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