1. Feb 5, 2007 #1

   Asuralm

   

   Hi all:
   Give three point P1, P2, P3 in R^3. How do I decide if a point P is inside of the triangle P1P2P3 please?

    

   Asuralm, Feb 5, 2007
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3. Feb 5, 2007 #2

   morphism

   

   Science Advisor

   Homework Helper

   P1, P2, and P3, provided that they aren't colinear, determine a plane. So the first condition is that P lies in that plane. Then it becomes a problem in R^2.

    

   morphism, Feb 5, 2007

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