👉 In mathematics, a fixed point of a function is a number x such that f(x) = x. In other words, it's an input value that makes the output equal to itself. If you have a function \(f\) and an input \(x\), if for some value of \(x\) in the domain of \(f\), \(f(x) = x\), then we say that \(x\) is a fixed point of \(f\). This means that as \(x