In mathematics, an inverse function is a function that `reverses` another function: if the function {mvar|f} applied to an input {mvar|x} gives a result of {mvar|y}, then applying its inverse function {mvar|g} to {mvar|y} gives the result {mvar|x}, and vice versa. i.e., {math|1=f(x) = y} if and only if {math|1=g(y) = x}. A function {mvar|f} that.....
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http://en.wikipedia.org/wiki/Inverse_function
(from the article `function`) By interchanging the roles of the independent and dependent variables in a given function, one can obtain an inverse function. Inverse functions do ... Each trigonometric function has an inverse function, that is, a function that `undoes` the original function. For example, the inverse function fo...
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http://www.britannica.com/eb/a-z/i/35
[
n] - the function obtained by expressing the dependent variable of one function as the independent variable of another
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http://www.webdictionary.co.uk/definition.php?query=inverse%20function
Function that exactly reverses the transformation produced by a function f; it is usually written as f-1. For example, to find the inverse of a function y = 3x + 2, x is made the subject of the equation: 3
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https://www.encyclo.co.uk/local/21221
the function that replaces another function when the dependent and independent variables of the first function are interchanged for an appropriate set of values of the dependent variable. In y = sin x and x = arc sin y, the inverse function of sin is arc sine.
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https://www.infoplease.com/dictionary/inverse-function
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