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Groups > comp.lang.python > #93405
| From | random832@fastmail.us |
|---|---|
| References | <fd370a7b-ea6a-48e5-90f4-9d86b89a745e@googlegroups.com> <mailman.230.1435800465.3674.python-list@python.org> <948e2800-e52b-429a-9e00-f268fcff5085@googlegroups.com> |
| Subject | Re: "normalizing" a value |
| Date | 2015-07-01 22:23 -0400 |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.231.1435803787.3674.python-list@python.org> (permalink) |
On Wed, Jul 1, 2015, at 21:49, bvdp wrote: > Interesting that negative values translate properly. That's an > non-intuitive result to me. Guess I should have studied that math stuff > harder way back when! There are multiple interpretations of the operation, and not all languages behave the same way as Python does with negative operands. Python is the odd one out when one considers C/C++, C#, and Java which all behave a different way. In general, almost all languages behave in a way so that given q, r = a // b, a % b; q * b + r == a. However, this simply changes the question to how division results involving negative operands are rounded. Here's an article by GvR about why python behaves the way it does: http://python-history.blogspot.com/2010/08/why-pythons-integer-division-floors.html
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"normalizing" a value bvdp <bob@mellowood.ca> - 2015-07-01 17:12 -0700
Re: "normalizing" a value MRAB <python@mrabarnett.plus.com> - 2015-07-02 01:30 +0100
Re: "normalizing" a value Paul Rubin <no.email@nospam.invalid> - 2015-07-01 17:36 -0700
Re: "normalizing" a value Denis McMahon <denismfmcmahon@gmail.com> - 2015-07-02 01:06 +0000
Re: "normalizing" a value random832@fastmail.us - 2015-07-01 21:27 -0400
Re: "normalizing" a value bvdp <bob@mellowood.ca> - 2015-07-01 18:49 -0700
Re: "normalizing" a value random832@fastmail.us - 2015-07-01 22:23 -0400
Re: "normalizing" a value bvdp <bob@mellowood.ca> - 2015-07-01 19:41 -0700
Re: "normalizing" a value Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2015-07-01 23:36 -0400
Re: "normalizing" a value bvdp <bob@mellowood.ca> - 2015-07-02 10:03 -0700
Re: "normalizing" a value Steven D'Aprano <steve@pearwood.info> - 2015-07-02 12:15 +1000
Re: "normalizing" a value bvdp <bob@mellowood.ca> - 2015-07-01 19:42 -0700
Re: "normalizing" a value Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-02 05:41 +0100
Re: "normalizing" a value Skip Montanaro <skip.montanaro@gmail.com> - 2015-07-02 10:05 -0500
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