I was testing a operation like this:

[input] 3.9/0.1 : 4.1/0.1
[output] 39    40

don't know why 4.1/0.1 is approximated to 40. If I add a round(), it will goes as expected:

[input] 3.9/0.1 : round(4.1/0.1)
[output] 39    40   41

What's wrong with the first operation?

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