[docs] Re: Fwd: Can you explain to me this confusion?

18 May 2021

      Hi,

Le 5/17/21 à 11:37 AM, Tung Anh Nguyen a écrit :
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I'm using Python 3.8.5 on Ubuntu 20.04. I just don't understand these
things?
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...
...
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?
We can answer, there's a whole page on the subject on docs.python.org:

=> https://docs.python.org/3/tutorial/floatingpoint.html

and if you want a bit of amusement around this:
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import webbrowser
webbrowser.open(f"https://{.1+.2}.com")
Bests,
--
[Julien Palard](https://mdk.fr)