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MathGroup Archive 2002

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  • To: mathgroup at
  • Subject: [mg34875] Curl
  • From: John Deacon <jdeacon at>
  • Date: Tue, 11 Jun 2002 05:00:42 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

I must be getting the coordinate system wrong. I want to
calculate something like curl F where 
 F(x,y,z) = ixz + jyz + ky^2
where i, j and k are the unit vectors in the x, y and z
directions respectively.

	<< Calculus`VectorAnalysis`
	SetCoordinates[Cartesian[x, y, z ]]
	Curl[{xz, yz, -y^2}]
	{-2 y, 0, 0}
Yet I would swear it should be -3yi + xj

What am I doing wrong?


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