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Definition of a differentiable function

  1. Dec 16, 2006 #1
    I need to know the definition of a differentiable function at a point in Banach spaces, my notes has a certain ambiguity and I can't find a book with the definition. Thanks.
  2. jcsd
  3. Dec 16, 2006 #2


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  4. Dec 16, 2006 #3
    The wiki ones do not correspond (though I'm sure they are equivalent) to what we use. I found my definition from some obscure source, but thanks anyway.
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