I'm using Python 3.8.5 on Ubuntu 20.04. I just don't understand these things?
>>> float("8.1")*100
810.0
>>> float("8.2")*100
819.9999999999999 ?
>>> float("8.3")*100
830.0000000000001 ?
>>> float("8.4")*100
840.0
Why is that? Is that a bug? or something I don't know yet? Could you guys answer my question?