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MathGroup Archive 2004

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Cylindrical coordinates problem

  • To: mathgroup at
  • Subject: [mg51337] Cylindrical coordinates problem
  • From: "symbio" <symbio at>
  • Date: Thu, 14 Oct 2004 06:37:49 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

I'm having a hard time understanding how Cylindrical Coordinates work in 
Mathematica.  I have several questions:
1.  What is the expression for unit vectors in Cylindrical Coordinates in 
Mathematica?  For example is this correct: r_unit = {1,0,0}, phi_unit = 
{0,1,0}, and z_unit = {0,0,1}???
2.  How do you perform vector cross product of these unit vectors in 
Cylindrical coordinates in Mathematica?  for example: CrossProduct [ {1, 0, 
0}, {0, 1, 0}] gives = {0, 0, 0} which is not the correct answer, then how 
am I supposed to be doing it?

Can anyone please help?

thanks in advance!

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