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Groups > comp.lang.python > #60093
| From | Alister <alister.ware@ntlworld.com> |
|---|---|
| Subject | Re: Newbie - Trying to Help a Friend |
| Newsgroups | comp.lang.python |
| References | (3 earlier) <528c31e9$0$11089$c3e8da3@news.astraweb.com> <mailman.2952.1384926851.18130.python-list@python.org> <ci%iu.79106$v_6.55095@fx20.am4> <mailman.2959.1384955870.18130.python-list@python.org> <r_3ju.169172$v41.72763@fx23.am4> |
| Message-ID | <Ed4ju.115243$qC.92401@fx07.am4> (permalink) |
| Organization | virginmedia.com |
| Date | 2013-11-20 15:06 +0000 |
On Wed, 20 Nov 2013 14:49:59 +0000, Alister wrote: > On Wed, 20 Nov 2013 13:57:30 +0000, Mark Lawrence wrote: > >> On 20/11/2013 09:29, Alister wrote: >>> On Wed, 20 Nov 2013 00:54:28 -0500, Dave Angel wrote: >>> >>>> On 20 Nov 2013 03:52:10 GMT, Steven D'Aprano <steve@pearwood.info> >>>> wrote: >>>>> 2 does count because it isn't divisible by 3. The question states, >>>>> "[count] how many positive integers less than N are not divisible >>>> by 2,3 >>>>> or 5". Two is not divisible by 3, so "not divisible by 2,3 or 5" is >>>> true, >>>>> so two gets counted. >>>> >>>>> The first number which is divisible by *all* of 2, 3 and 5 (i.e. >>>> fails >>>>> the test, and therefore doesn't get counted) is 30. The next few >>>> that >>>>> fail the test are 60, 90, 120, 150, 180, 210, 240, 270, 300, ... >>>>> Remember, these are the numbers which should not be counted. >>>> >>>>>> I count 1, not 6 >>>> >>>>> Out of curiosity, which number did you count? >>>> >>>> 1 of course. It's the only one that's not divisible by any of the >>>> factors. >>>> >>>> Apparently we disagree about precedence and associativity in English. >>>> I believe the not applies to the result of (divisible by 2, 3, or 5), >>>> so I'd count 1, 7, 11, 13, 17, 19, 23. The first nonprime would be >>>> 49. >>>> >>>> If I were trying to get the series you describe, I'd phrase it as >>>> "Not divisible by 2, and not divisible by 3, and not divisible by >>>> 5" >>> >>> This ambiguity is a great example of why teachers (and enayone else >>> responsible for specifying a programming project) should take greater >>> care when specifying tasks. >>> if it is to late to ask for clarification (the correct step in a real >>> world case) I suggest you write 2 programs 1 for each interpretation, >>> it will be good for your personal learning even if the teacher does >>> not give any extra credit. >>> >>> >> Ambiguity is the reason that some of the most expensive language >> lessons in the world are at places like Sandhurst and West Point. >> Giving crystal clear orders, whether verbally or in writing, is >> considered quite important in the military. >> >> By the way, this is double posted and there were four identical >> messages from you yesterday, finger trouble or what? :) > > I don't think the problem is at my end. I am only sending once to the > best of my knowledge (using Pan newsreader to Comp.lang.python) Ok this is now silly Apologies to everyone I am monitoring my network connection to confirm that i am not sending multiple times. -- T-1's congested due to porn traffic to the news server.
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Newbie - Trying to Help a Friend bradleybooth12345@gmail.com - 2013-11-19 10:40 -0800
Re: Newbie - Trying to Help a Friend maxwell34m@gmail.com - 2013-11-19 11:05 -0800
Re: Newbie - Trying to Help a Friend Neil Cerutti <mr.cerutti@gmail.com> - 2013-11-19 14:07 -0500
Re: Newbie - Trying to Help a Friend Gary Herron <gary.herron@islandtraining.com> - 2013-11-19 11:06 -0800
Re: Newbie - Trying to Help a Friend bradleybooth12345@gmail.com - 2013-11-19 11:27 -0800
Re: Newbie - Trying to Help a Friend Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-19 20:48 +0000
Re: Newbie - Trying to Help a Friend Duncan Booth <duncan.booth@invalid.invalid> - 2013-11-20 11:38 +0000
Re: Newbie - Trying to Help a Friend Denis McMahon <denismfmcmahon@gmail.com> - 2013-11-23 02:03 +0000
Re: Newbie - Trying to Help a Friend Mark Janssen <dreamingforward@gmail.com> - 2013-11-19 14:51 -0800
Re: Newbie - Trying to Help a Friend Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-11-20 00:17 +0000
Re: Newbie - Trying to Help a Friend Dave Angel <davea@davea.name> - 2013-11-19 22:10 -0500
Re: Newbie - Trying to Help a Friend Steven D'Aprano <steve@pearwood.info> - 2013-11-20 03:52 +0000
Re: Newbie - Trying to Help a Friend Dave Angel <davea@davea.name> - 2013-11-20 00:54 -0500
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 09:29 +0000
Re: Newbie - Trying to Help a Friend Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-20 13:57 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 14:51 +0000
Re: Newbie - Trying to Help a Friend Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-11-20 18:33 -0500
Re: Newbie - Trying to Help a Friend Anssi Saari <as@sci.fi> - 2013-11-21 15:44 +0200
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 14:49 +0000
Re: Newbie - Trying to Help a Friend Chris Angelico <rosuav@gmail.com> - 2013-11-21 02:05 +1100
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 15:06 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 15:09 +0000
Re: Newbie - Trying to Help a Friend Chris Angelico <rosuav@gmail.com> - 2013-11-21 02:14 +1100
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 15:35 +0000
Multiple postings Alister <alister.ware@ntlworld.com> - 2013-11-20 15:36 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 15:34 +0000
Re: Newbie - Trying to Help a Friend Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-20 16:29 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 16:45 +0000
Re: Newbie - Trying to Help a Friend Ned Batchelder <ned@nedbatchelder.com> - 2013-11-20 09:12 -0800
Re: Newbie - Trying to Help a Friend Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-20 17:37 +0000
Re: Newbie - Trying to Help a Friend Ned Batchelder <ned@nedbatchelder.com> - 2013-11-20 09:51 -0800
Re: Newbie - Trying to Help a Friend Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-20 18:09 +0000
Re: Newbie - Trying to Help a Friend Ned Batchelder <ned@nedbatchelder.com> - 2013-11-20 10:18 -0800
Re: Newbie - Trying to Help a Friend Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-20 18:35 +0000
Re: Newbie - Trying to Help a Friend Ned Batchelder <ned@nedbatchelder.com> - 2013-11-20 11:54 -0800
Re: Newbie - Trying to Help a Friend Chris Angelico <rosuav@gmail.com> - 2013-11-21 07:26 +1100
Off-topic: Pop culture references [was Re: Newbie - Trying to Help a Friend] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-11-21 00:27 +0000
Re: Off-topic: Pop culture references [was Re: Newbie - Trying to Help a Friend] MRAB <python@mrabarnett.plus.com> - 2013-11-21 00:48 +0000
Re: Off-topic: Pop culture references [was Re: Newbie - Trying to Help a Friend] Tim Golden <mail@timgolden.me.uk> - 2013-11-21 09:08 +0000
Re: Off-topic: Pop culture references [was Re: Newbie - Trying to Help a Friend] Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-11-22 17:10 +1300
Re: Off-topic: Pop culture references [was Re: Newbie - Trying to Help a Friend] Chris Angelico <rosuav@gmail.com> - 2013-11-21 20:46 +1100
Re: Newbie - Trying to Help a Friend Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-11-21 12:53 +0100
Re: Newbie - Trying to Help a Friend Chris Angelico <rosuav@gmail.com> - 2013-11-22 02:48 +1100
Re: Newbie - Trying to Help a Friend Neil Cerutti <mr.cerutti@gmail.com> - 2013-11-21 11:29 -0500
Re: Newbie - Trying to Help a Friend Chris Angelico <rosuav@gmail.com> - 2013-11-22 04:10 +1100
Re: Newbie - Trying to Help a Friend bradleybooth12345@gmail.com - 2013-11-21 15:17 -0800
Re: Newbie - Trying to Help a Friend Gary Herron <gary.herron@islandtraining.com> - 2013-11-21 15:35 -0800
Re: Newbie - Trying to Help a Friend bradleybooth12345@gmail.com - 2013-11-21 15:55 -0800
Re: Newbie - Trying to Help a Friend Terry Reedy <tjreedy@udel.edu> - 2013-11-21 19:55 -0500
Re: Newbie - Trying to Help a Friend Gary Herron <gary.herron@islandtraining.com> - 2013-11-21 20:17 -0800
Re: Newbie - Trying to Help a Friend Terry Reedy <tjreedy@udel.edu> - 2013-11-21 19:17 -0500
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 15:34 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 15:06 +0000
Re: Newbie - Trying to Help a Friend Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-11-20 15:24 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 14:50 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 14:50 +0000
Re: Newbie - Trying to Help a Friend Alister <alister.ware@ntlworld.com> - 2013-11-20 09:29 +0000
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