I don’t understand. The simple formula is provided, all they’re expected to do is to - figure out what parameters should look like - detect edge cases (e.g. d

I don’t understand. The simple formula is provided, all they’re expected to do is to - figure out what parameters should look like - detect edge cases (e.g. division by zero when a==0 or sqrt of negative value) - and discuss its usage (how to return 0, 1, 2 roots and how you signal it to the caller so it’s convenient) And this is not a silent-wait quiz. When they seem confused I ask directly what it would return if `a` is zero. Or tell that a, b and c are parameters to such equation. Anyway, maybe it’s sort of a TIL moment and I should stick more to fizzbuzz with periods changed or to string reversal. But I feel confused about it as hell.