title: Finding uncertainty with rounding
body: <p>I'm a high school student in physics and I'm trying to write a code that finds uncertainty and rounds. I got the part that finds uncertainty but I'm struggling to get the code to round for me because it either just doesn't work or it rounds to 0 when it deals with small numbers can anyone help me? I've been trying to find a code on here that might help me but any code i tried form here didn't work for me.</p>