Ahhhh I see what you were saying now. And I just meant experience with error estimation more generally sorry, my use of pronouns went dumb for half a tick.
First, thank you both so very much! I've been struggling to look at this in so many different ways because analysis isn't my strongest suit, and your (in hindsight, simple) suggestions to let \frac{1}{2}|y_{i}-y|\rightarrow \frac{1}{2}2y is exactly the hint I needed. HOWEVER, I'm having trouble...
Homework Statement
This isn't quite homework (though it's close), but I'm working on a quantum circuit and wish to implement an iterative method to find the square root of a number using elementary arithmetic operations (and without reciprocals). I've gotten most of it down, but the error...