0
$\begingroup$

$$\lim_{\omega \to \infty } \, \frac{\left| C\right| \text{Si}\left(\frac{\omega }{2}\right) \sqrt{1-\cos (\omega )} \csc \left(\frac{\omega }{2}\right)}{\sqrt{\pi } \log (\omega )}$$

$\text{Si}$ is SineIntegral

I'd like to know if its possible to evaluate this limit.

  • 0
    $\sqrt{1-\cos x}\csc x/2$ is limited http://m.wolframalpha.com/input/?i=sqrt%281-cos+x%29CSC+x%2F2&x=11&y=7 , and $Si$ converges so the logarithm dominates and the limit is $0$2017-01-03
  • 0
    @N74 : Can you try evaluating the entire limit in wolfram? I tried in mathematica and with no result!2017-01-03
  • 0
    Probably also Wolfram would fail. I'm on mobile at the moment but you can try by yourself on wolfram website.2017-01-03
  • 0
    pull the irrelevant constants out of the limit, i get eyecancer from this...:/2017-01-03
  • 0
    Furthermore $\text{Si}(x)\sim_{\infty}\frac{\pi}2+\mathcal{O}(\frac{\cos(x)}{x})$ so....2017-01-03
  • 0
    @tired : Assuming absence of $log(\omega)$ would the limit be $|C|$?2017-01-03
  • 0
    Without the log the function is alternating and so there's no limit.2017-01-07

0 Answers 0