from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A function whose relation to a given function is such that their composite is the identity function. It is often found by interchanging dependent and independent variables.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics A
functionthat does exactly the oppositeof another; formally the inverse function of a function exists such that: .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a function obtained by expressing the dependent variable of one function as the independent variable of another; f and g are inverse functions if f(x)=y and g(y)=x
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