👉 In mathematics, a settable is a property that allows an entity to be manipulated or modified. It refers to a set of properties that can be changed by another object or entity without altering the original object. For example, consider a settable function. If we have a function f(x) = x^2, and we want to change its value, we can simply call f(3). This will give us an output of 9, which is in our original domain. In programming