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Groups > comp.lang.python > #33560
| From | Dennis Lee Bieber <wlfraed@ix.netcom.com> |
|---|---|
| Subject | Re: Problems on these two questions |
| Date | 2012-11-19 18:15 -0500 |
| Organization | > Bestiaria Support Staff < |
| References | <400c615f-4d93-4b8b-85ec-1bb4c47e30fe@googlegroups.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.15.1353366936.29569.python-list@python.org> (permalink) |
On Sun, 18 Nov 2012 17:52:35 -0800 (PST), su29090 <129km09@gmail.com>
declaimed the following in gmane.comp.python.general:
>
> I all of the other problems but I have issues with these:
>
> 1.Given a positive integer n , assign True to is_prime if n has no factors other than 1 and itself. (Remember, m is a factor of n if m divides n evenly.)
>
Google: Sieve of Eratosthenes (might be mis-spelled)
> 2.An arithmetic progression is a sequence of numbers in which the distance (or difference) between any two successive numbers if the same. This in the sequence 1, 3, 5, 7, ... , the distance is 2 while in the sequence 6, 12, 18, 24, ... , the distance is 6.
>
> Given the positive integer distance and the positive integer n , associate the variable sum with the sum of the elements of the arithmetic progression from 1 to n with distance distance . For example, if distance is 2 and n is 10 , then sum would be associated with 26 because 1+3+5+7+9 = 25 .
>
So, what have you tried?
Consider: you have a "sum", you have a sequence of "elements" (based
upon a spacing "distance"), and you have an upper bound "n"
You need to generate a sequence of "elements" starting at "1", using
"distance" as the spacing, until you exceed "n", and you want to produce
a "sum" of all those elements...
--
Wulfraed Dennis Lee Bieber AF6VN
wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/
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Problems on these two questions su29090 <129km09@gmail.com> - 2012-11-18 17:52 -0800
Re: Problems on these two questions Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-11-19 02:09 +0000
Re: Problems on these two questions su29090 <129km09@gmail.com> - 2012-11-18 18:15 -0800
Re: Problems on these two questions Dave Angel <d@davea.name> - 2012-11-18 21:33 -0500
Re: Problems on these two questions Dave Angel <d@davea.name> - 2012-11-18 21:18 -0500
Re: Problems on these two questions Chris Angelico <rosuav@gmail.com> - 2012-11-19 13:23 +1100
Re: Problems on these two questions Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-11-19 18:15 -0500
Re: Problems on these two questions Neil Cerutti <neilc@norwich.edu> - 2012-11-20 15:02 +0000
Re: Problems on these two questions Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-11-19 18:16 -0500
Re: Problems on these two questions Dave Angel <d@davea.name> - 2012-11-19 20:52 -0500
Re: Problems on these two questions Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-19 23:32 -0700
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