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Homework Help: Why they chose maximum and not minimum functions

  1. Jan 10, 2009 #1
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Jan 10, 2009 #2


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    It's not clear what your question is. In the first example you give, they have [itex]|x-a||x-b|< \epsilon[/itex] in order to get |x-a| only, you have to divide both sides by |x-b| "inverting it reverses the inequality. That doesn't happen in the second example- there is no reciprocal.
  4. Jan 10, 2009 #3
    when to use MAX when to use MIN ?
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