ters fonksiyon

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inverse function

A function that does exactly the opposite of another; formally the inverse function f^{-1}\! of a function f\! exists such that: \forall x . f(x) = y \implies f^{-1}(y) = x

Halving is the inverse function of doubling.

function which is reached by expressing the dependent variable of one function as the independent variable of another (Mathematics)

the 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

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. Mathematical function that undoes the effect of another function. For example, the inverse function of the formula that converts Celsius temperature to Fahrenheit temperature is the formula that converts Fahrenheit to Celsius. Applying one formula and then the other yields the original temperature. Inverse procedures are essential to solving equations because they allow mathematical operations to be reversed (e.g. logarithms, the inverses of exponential functions, are used to solve exponential equations). Whenever a mathematical procedure is introduced, one of the most important questions is how to invert it. Thus, for example, the trigonometric functions gave rise to the inverse trigonometric functions

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ters fonk·si·yon