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How to study the behavior of a vector valued function?

  1. Jun 9, 2012 #1
    Hi, I would like to know how to treat a vector valued function when I want to know where are minima, maxima and saddle points.

    Thanks in advance!
     
  2. jcsd
  3. Jun 9, 2012 #2
    Perhaps there is some way to consider such properties, but to me, such concepts no longer have meaning. How could you say a vector has a minimum or maximum value in a region or neighborhood? You could consider the magnitude, but that's a scalar function and requires no more thought than scalar function theory that you're already familiar with.
     
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