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Geometric absolute

  1. Apr 23, 2014 #1
    "Geometric absolute"

    If exist a function called absolute that ensures that the result have always the posite sign, so, exist some function that ensures that the sign of the result is always ×?

    ##f(x) = x##
    ##f(\frac{1}{x}) = x##
  2. jcsd
  3. Apr 23, 2014 #2
    The question does not make sense as stated. x is not a sign.

    The first equation defines a function f(x) = x, and the function that satisfies the 2nd equation is 1/x, but obviously, there is no function that satisfies both.
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