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Oct 4, 2021 at 10:13 history edited YCor CC BY-SA 4.0
updated title to relevant question, updated notation
Oct 4, 2021 at 8:50 history edited YCor
edited tags
Oct 4, 2021 at 8:43 history edited Daniele Tampieri CC BY-SA 4.0
Math Jaxed title and further tagged
Oct 4, 2021 at 7:15 history edited Chetan Vuppulury
Removed limits-and-colimits tag as not relevant
Oct 3, 2021 at 18:18 comment added fraxinus cosine converges at non-zero
Oct 3, 2021 at 16:37 comment added Lutz Lehmann See math.stackexchange.com/questions/3837335/… for the square root case and links to other topics related to the sine iteration.
Oct 3, 2021 at 16:13 history edited LSpice CC BY-SA 4.0
Fixing parentheses while this is still on the front page
Oct 3, 2021 at 14:24 history made wiki Post Made Community Wiki by Stefan Kohl
Oct 3, 2021 at 12:22 history became hot network question
Oct 3, 2021 at 10:02 history reopened Pace Nielsen
Carlo Beenakker
Daniele Tampieri
Alexey Ustinov
Stefan Kohl
Oct 3, 2021 at 6:56 comment added Carlo Beenakker to make this question less trivial and more appropriate for MO, I have added the rescaled limit as a follow-up question; perhaps if it's reopened the limit for $\alpha\neq 0,1/2$ can be considered in an answer.
S Oct 3, 2021 at 6:43 review Reopen votes
Oct 3, 2021 at 10:06
S Oct 3, 2021 at 6:43 history edited Carlo Beenakker CC BY-SA 4.0
to make this question less trivial and more appropriate for MO, I have added the rescaled limit as a follow-up question Added to review
Oct 3, 2021 at 6:32 history left closed in review Alexey Ustinov
user44191
Daniele Tampieri
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Oct 3, 2021 at 6:32 history edited Daniele Tampieri CC BY-SA 4.0
Math Jaxed
Oct 3, 2021 at 4:39 review Reopen votes
Oct 3, 2021 at 6:32
Oct 2, 2021 at 19:50 history closed Boris Bukh
Carl-Fredrik Nyberg Brodda
Chris Wuthrich
Wojowu
abx
Not suitable for this site
Oct 2, 2021 at 19:48 comment added Willie Wong And the limit exists since $\sin(x) \in [-1,1]$ and on $[-1,1]$ you have that $\sin x$ and $x$ have the same sign, while $|\sin x| \leq x$. So the generated sequence is eventually monotone.
Oct 2, 2021 at 19:42 review Close votes
S Oct 2, 2021 at 19:51
Oct 2, 2021 at 19:34 answer added Carlo Beenakker timeline score: 33
Oct 2, 2021 at 19:24 comment added Martin Rubey If the limit exists it must be a fixed point if the sine.
S Oct 2, 2021 at 19:18 review First questions
S Oct 2, 2021 at 19:51
S Oct 2, 2021 at 19:18 history asked Guy Dror CC BY-SA 4.0