On Wed, 20 Nov 2013 15:06:44 +0000, Alister wrote:
> 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 <st...@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.
that last one seemed good
must be a strange quirk of pan & turned off hide to system tray & allow
multiple instances.
not sure why either of them should cause the problem, I only have 1 copie
running
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as an income tax refund.
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