Hi, I'm having quite a bit of trouble finding the propagation of uncertainty (using partial derivatives) of the volume of a hollow cylinder. The examples in my tutorial only demonstrates how to find the propagation of uncertainty on simple operations such as x + y, x/y, etc... 1. The problem statement, all variables and given/known data Height: h = 10.05 mm ; Δ h = +- 0.05 mm Outer Diameter: D = 6.03 mm ; Δ d = +- 0.05 mm Inner Diameter: d = 3.01 mm ; Δ d = +- 0.05 mm 2. Relevant equations Volume: V = (Pi/4) ((D^2) - (d^2)) (h) = 215.49mm 3. The attempt at a solution As I've stated above, I have no idea how to find the propagation of uncertainty for such a function using partial derivatives. I've looked a fair amount of time on the web but nearly every example given does not contain more then a single or double variable function. If somebody could give me a step-by-step on how to do this, I would be extremly grateful. Thank you.