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MathGroup Archive 2007

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Re: CrossProduct in Spherical Coordinates

  • To: mathgroup at smc.vnet.net
  • Subject: [mg75319] Re: CrossProduct in Spherical Coordinates
  • From: dh <dh at metrohm.ch>
  • Date: Wed, 25 Apr 2007 05:33:29 -0400 (EDT)
  • References: <f0kbsf$r1k$1@smc.vnet.net>


Hi,

consider you second vector: {0,1,0}. This is a vector with zero length.

hope this helps, Daniel



gogoant06 at yahoo.com.hk wrote:

> Dear all,

> 

> I am really new to mathematica and I have met a damn simple problem.

> 

> In[1]:=

> <<Calculus`VectorAnalysis`

> 

> In[2]:=

> CrossProduct[{1,0,0},{0,1,0},Spherical]

> 

> Out[2]=

> {0,0,0}

> 

> Why? Isn't the result supposed to be {0,0,1}, even in spherical

> coordinates?

> 

> best regards,

> lion

> 

> 




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