Can you explain what's happening with python shell..
>>> 6/7
0
>>> -6/7
-1
>>> -(6/7)
0
-
3Possible duplicate of Negative integer division surprising resulttimgeb– timgeb2016-01-09 12:56:45 +00:00Commented Jan 9, 2016 at 12:56
-
stackoverflow.com/questions/1267869/…Łukasz Rogalski– Łukasz Rogalski2016-01-11 17:21:32 +00:00Commented Jan 11, 2016 at 17:21
Add a comment
|
2 Answers
With the / operator python always rounds to minus infinity (so to the "more negative" value) if you input integers, like stated in the python docs. This explains the described behavior.
So 6/7 would be 0.857... and gets rounded to 0 while -6/7 gives -0.857... and will be rounded to -1. Finally -0 equals 0.
Comments
If you want to perform floating point division you should set the following import at the top of your script or as the first line in your Python shell:
from __future__ import division
This will ensure that you get proper results. If you want to perform integer division use // instead.
