Umbilic points

  • #1

Main Question or Discussion Point

discuss how to find the umbilic points of an ellipsoid and their connection to lines of curvature.
 

Answers and Replies

  • #2
HallsofIvy
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An "umbilic point" of a surface is a point where the principal curvatures are equal. How do you find the principal curvatures at a point on an ellipsoid?
 
  • #3
that's where I need help.
 
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