. . . . . . . . . . . . . . . . . . . . . . . . . "In mathematics, the inverse function of a function f (also called the inverse of f) is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is denoted by For a function , its inverse admits an explicit description: it sends each element to the unique element such that f(x) = y."@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "1074485760"^^ . "14907"^^ . . . . . . . . . . . . . . . . . . . . . . . . "Inverse function"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "43030"^^ . . . . . . . . . . . . . "In mathematics, the inverse function of a function f (also called the inverse of f) is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is denoted by For a function , its inverse admits an explicit description: it sends each element to the unique element such that f(x) = y. As an example, consider the real-valued function of a real variable given by f(x) = 5x \u2212 7. One can think of f as the function which multiplies its input by 5 then subtracts 7 from the result. To undo this, one adds 7 to the input, then divides the result by 5. Therefore, the inverse of f is the function defined by"@en . . . .