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Function notation minus one exponent?

  1. Oct 30, 2011 #1
    Hi !

    What does the notation mean exactly when a function has power minus one ?

    For example i have seen the logistic function written as:

    f(x) = f0[1 + exp(−βx)]^-1
     
  2. jcsd
  3. Oct 30, 2011 #2

    gb7nash

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    Homework Helper

    [tex]z^{-1} = \frac{1}{z}[/tex]

    For instance:

    [tex]2^{-1} = \frac{1}{2}[/tex]

    Applying this to your problem...
     
  4. Oct 30, 2011 #3
    oh ok, thanks 4 the help.
     
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