Hi Say I have a function given by f(x)=a/x, where a is some real constant. I know that there is some uncertainty Δx on x, but I don't know what it is. I just know that it will fluctuate around some value. What is the proper way of determining how f(x) reacts to the uncertainty Δx? I mean, is there a way to find out if it is very sensitive to even small Δx or not?