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List:       python-ideas
Subject:    Re: [Python-ideas] integer dividion in R
From:       Chris Rebert <pyideas () rebertia ! com>
Date:       2010-05-07 7:38:49
Message-ID: r2x50697b2c1005070038yd23940dcr1df80fbcb7464557 () mail ! gmail ! com
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2010/5/7 spir ☣ <denis.spir@gmail.com>:
> Hello,
> 
> 
> The following point came up on the python-tutor mailing list:
> 
> spir@o:~$ python
> Python 2.6.4 (r264:75706, Dec   7 2009, 18:45:15)
> [GCC 4.4.1] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> > > > 4//3
> 1
> > > > -4//3
> -2
> 
> The algorithm seems to use floor, not integral part. Is this correct, according to \
> the (math) definition of integer division?

There was *literally* just a thread about essentially the same thing:
http://mail.python.org/pipermail/python-ideas/2010-May/007170.html

Short answer: Yes, because there are multiple valid ways to define
integer quotient and modulo.

Cheers,
Chris
--
http://blog.rebertia.com
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