Function notation minus one exponent?

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The discussion focuses on the meaning of function notation involving a power of minus one, particularly in the context of the logistic function. It clarifies that an exponent of -1 indicates the reciprocal of the base, such as 2^{-1} equating to 1/2. The notation is used to express functions in a compact form, emphasizing the inverse relationship. The conversation highlights the importance of understanding this notation for proper application in mathematical problems. Overall, grasping the concept of negative exponents is crucial for interpreting various functions correctly.
bangthatdrum
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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
 
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z^{-1} = \frac{1}{z}

For instance:

2^{-1} = \frac{1}{2}

Applying this to your problem...
 
oh ok, thanks 4 the help.
 

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