Timeline for integral with simple approximation. But why?

10 events

when toggle format	what		by	license	comment
Sep 3, 2016 at 0:55	review	First posts
Sep 3, 2016 at 1:36
Aug 25, 2016 at 20:50	history	reopened	Michael Albanese Wolfgang paul garrett Stefan Kohl♦ Yemon Choi
Aug 25, 2016 at 20:24	history	edited	Karen Schmidt	CC BY-SA 3.0	title no longer correct after last edit
Aug 25, 2016 at 20:14	review	Reopen votes
Aug 25, 2016 at 20:54
Aug 25, 2016 at 19:57	history	edited	Karen Schmidt	CC BY-SA 3.0	rewrote so that there is a clear question
Aug 24, 2016 at 20:58	history	closed	Gerald Edgar Franz Lemmermeyer Carlo Beenakker Wolfgang András Bátkai		Needs details or clarity
Aug 24, 2016 at 18:23	review	Close votes
Aug 24, 2016 at 20:58
Aug 24, 2016 at 18:01	comment	added	Gerald Edgar		Taking $x_0=1$ and $\lambda=1$ and $5$ I also get disagreement, and not just by a constant factor. Probably Karen copied something wrong. Should we put the question on hold until Karen can correct it?
Aug 24, 2016 at 17:01	comment	added	Willie Wong		Are you missing a factor? Setting $x_0 = 0$ the integral simplifies to $\int_{-\infty}^\infty \frac{1}{(1 + x^2)^{3/2}} = 2 \neq \mathrm{sinc}(0)$.
Aug 24, 2016 at 16:00	history	asked	Karen Schmidt	CC BY-SA 3.0