👉 The term "raffman" is used in mathematics to denote a function or operator that has an inverse. The inverse of a function f(x) = g(y) is denoted as f-1(y), and it is defined by: f-1(y) = y/(y^2 + 1) This means that the inverse function takes any real number y, and returns the value x such that f(x) = y. This operation is important in many branches of mathematics,