Integer division of rationals

[Nathann Cohen]

Helloooooo everybody !

This is what I spent the last hour finding :

sage: x = 1/2
sage: x
1/2
sage: x//2
1/4

I got some variable x as input, which was of rational type when I
expected it to be integer type (does not matter, this rational was
equal to an integer in my case). Unfortunately, x//2 (which I
understand as the integer division of x by 2) does not return an
integer.

Bug or feature ? :-P

Nathann

[William Stein]

*Bug*, because in pure Python, we have

~$ python
Python 2.7.3 (default, Sep 26 2013, 20:03:06)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 0.5//2
0.0
>>>
~$ python3
Python 3.2.3 (default, Sep 25 2013, 18:22:43)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 0.5//2
0.0

>
> Nathann
>
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--
William Stein
Professor of Mathematics
University of Washington
http://wstein.org