👉 Tractabilities are a measure of a function's sensitivity to changes in its inputs. They can be thought of as how much a change in one input affects the output of another, or how sensitive the output is to an initial condition. For example, if you have a function that returns the length of a rectangle, and you start with a 10 inch rectangle and then add 2 inches, the function will return a new value based on the formula: length = 10 +