Timeline for Is there a limit of $\cos (n!)$? [closed]
Current License: CC BY-SA 3.0
22 events
| when toggle format | what | by | license | comment | |
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| S Dec 24, 2015 at 17:40 | history | closed |
Johannes Hahn paul garrett Andrés E. Caicedo Wolfgang user9072 |
Not suitable for this site | |
| S Dec 24, 2015 at 17:40 | comment | added | user9072 | I'm voting to close this question as off-topic because it was always borderline, OP did not answer to question for years, and the question exists highly voted with an answer on Mathematics | |
| S Dec 24, 2015 at 17:21 | history | suggested | wythagoras | CC BY-SA 3.0 |
MathJax, removing salutions and thanks.
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| Dec 24, 2015 at 16:41 | review | Close votes | |||
| Dec 24, 2015 at 17:42 | |||||
| Dec 24, 2015 at 15:51 | review | Suggested edits | |||
| S Dec 24, 2015 at 17:21 | |||||
| Nov 3, 2010 at 13:12 | comment | added | Andrew Stacey | Rather than perpetuate the close/open tug-of-war, I would like to know if the questioner is still interested in knowing more about this question beyond what David has already said at math.SX. I would also like to encourage those who reopened it to participate in the discussion at meta that David links to above so that we can all understand your reasoning. | |
| Nov 3, 2010 at 5:31 | comment | added | Ryan Budney | IMO it would have made sense for people to participate in the meta thread rather than to have an close/open tug-of-war with no discussion. Oh well. | |
| Nov 3, 2010 at 5:25 | history | edited | Andrés E. Caicedo |
new tags
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| Nov 3, 2010 at 4:55 | history | reopened |
Georges Elencwajg Daniel Moskovich Will Jagy Andrés E. Caicedo Gil Kalai |
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| Nov 3, 2010 at 1:08 | comment | added | David E Speyer | I've started a meta conversation over at tea.mathoverflow.net/discussion/741/does-lim-cosn-exist | |
| Nov 3, 2010 at 0:43 | comment | added | José Figueroa-O'Farrill | The question was closed (or at least I voted to close) because it is not a good question, even though a good answer might derive from a related question. It's unmotivated and, protestations to the contrary, it does look like homework in the sense the OP is asking for a proof of something which the OP knows to be true. If the question were to be rewritten in a more appropriate fashion, then I would be happy to vote to reopen. | |
| Nov 2, 2010 at 22:26 | comment | added | Sidney Raffer | The question boils down to whether the sequence $cn!$ tends to a limit mod 1, where $c=1/(2\pi)$. There are transcendental numbers $c$ for which the sequence DOES tend to a limit mod 1, so we have to use something about $\pi$. I'm sorry to see the question closed | |
| Nov 2, 2010 at 22:17 | comment | added | Todd Trimble | It may not be research level, but then again, it's a little bit of a tough call as to what qualifies as a research question. I agree with David that this problem might not be trivial, but closely related problems (such as showing that $\cos(n)$ has no limit) are well-trodden ground. | |
| Nov 2, 2010 at 21:50 | comment | added | Douglas S. Stones | The question is now here: math.stackexchange.com/questions/8690/is-there-a-limit-of-cos-n | |
| Nov 2, 2010 at 21:41 | history | edited | Willie Wong |
edited tags
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| Nov 2, 2010 at 21:32 | history | closed |
Ryan Budney Andrey Rekalo José Figueroa-O'Farrill Will Jagy Harald Hanche-Olsen |
too localized | |
| Nov 2, 2010 at 21:02 | comment | added | loskol | Sorry, this is not a homework/assignment, but you are right about low level of this problem. I'll post it in more appropiate place. | |
| Nov 2, 2010 at 21:01 | comment | added | Justin Melvin | It has a limit if the argument of the function is expressed in degrees. | |
| Nov 2, 2010 at 20:57 | comment | added | Ryan Budney | I'd like to suggest you move your question to the math.stackexchange website. Or perhaps Ask Dr. Math. | |
| Nov 2, 2010 at 20:57 | comment | added | David E Speyer | This site isn't meant for homework problems, or problems at the level of homework. So, if this is something you were assigned or found in an undergraduate text, we probably don't want it here. On the other hand, I have to admit, I don't see how to do this one. | |
| Nov 2, 2010 at 20:56 | comment | added | Thierry Zell | This seems like the wrong place to ask. The faq mathoverflow.net/faq#whatnot has a list of suggested sites for good places where you can ask non-research level questions. | |
| Nov 2, 2010 at 20:50 | history | asked | loskol | CC BY-SA 2.5 |