Timeline for Exact formula for $\sum_{n=0}^{+\infty}\frac1{n^2+1}$

13 events

when toggle format	what		by	license	comment
Nov 27, 2022 at 0:04	history	edited	LSpice	CC BY-SA 4.0	Typo, while this is on the front page
Dec 8, 2015 at 13:46	vote	accept	Feldmann Denis
Dec 1, 2015 at 6:53	history	edited	Benjamin Dickman	CC BY-SA 3.0	WolframAlpha correctly evaluates the series; I have fixed its mistranscription.
Nov 30, 2015 at 21:58	answer	added	Fedor Petrov		timeline score: 9
Nov 30, 2015 at 21:01	review	Close votes
Nov 30, 2015 at 22:55
S Nov 30, 2015 at 20:30	history	suggested	Leucippus	CC BY-SA 3.0	added some latex work
Nov 30, 2015 at 20:08	review	Suggested edits
S Nov 30, 2015 at 20:30
Nov 30, 2015 at 19:10	answer	added	Alexandre Eremenko		timeline score: 16
Nov 30, 2015 at 15:30	comment	added	Fedor Petrov		Integral not of f(x), but of $f(x)\cot \pi x$
Nov 30, 2015 at 15:27	answer	added	Gerald Edgar		timeline score: 16
Nov 30, 2015 at 15:15	comment	added	Gerald Edgar		There is no relation between existence of closed form for $\int f(x)\;dx$ and closed form for $\sum f(n)$.
Nov 30, 2015 at 15:13	comment	added	Fedor Petrov		Yes. We may interpret $f(n)$ as a residue of function $f(x)\cot (\pi x)$ in a point $n$. Then note that sum of residues of this function equals to 0 as integral over appropriate large circuit tends to 0.
Nov 30, 2015 at 14:59	history	asked	Feldmann Denis	CC BY-SA 3.0