Implement “tolerant” `equals` & `hashCode` for a class with floating point members?

The big problem with it is that two float values could still be very close together but still compare unequal. Basically you're dividing the range of floating point values into buckets - and two values could be very close together without being in the same bucket. Imagine you were using two significant digits, applying truncation to obtain the bucket, for example... then 11.999999 and 12.000001 would be unequal, but 12.000001 and 12.9999999 would be equal despite being much further apart from each other.

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