Slime <pov### [at] slimelandcom> writes:

> To my knowledge (which may have big holes in this area), calculating a
> square root and finding the root of a polynomial are both typically done
> with iterative algorithms that converge on a result (and can't give you
> the "true" precise answer). In fact, I think the most common way of

Yes. Once you're in the vicinity of a real root (to keep it simple), you
can calculate it to arbitrary precision.

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