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*newbie* output of ScalarTripleProduct

  • To: mathgroup at smc.vnet.net
  • Subject: [mg106750] *newbie* output of ScalarTripleProduct
  • From: pippo <marco.fax at email.it>
  • Date: Fri, 22 Jan 2010 05:41:06 -0500 (EST)

I'm (almost) new to mathematica ...
I coped this from some tutorial ...

Needs["VectorAnalysis`"]
r1 = {1, -3, 2}
r2 = {3, 7,-5}
r3 = {4, 1, 6}
r={x,y,z}
ScalarTripleProduct[r-r1,r2-r2,r3-r1]==0

the output i get is:
Out[6]= True

:-(

What am I missing ?

Thank you


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