Update : following search results : https://math.stackexchange.com/search?q=+%24%5Csum_%7B-%5Cinfty%7D%5E%7B%2B%5Cinfty%7D+%5Cfrac+%7B1%7D%7Bak%5E2%2Bbk%2Bc%7D%24 , do not turn into proper format, I am using Chrome and almost every other page looks correct. is the a trick to viewing search results with MathJax applied to them?

Update : Just found it by trying to ask the question again, and viewing the suggestions to view before posting. But is this the normal search method? Original question below:

I am sure I saw a question regarding summation of $\sum_{-\infty}^{+\infty} \frac {1}{ak^2+bk+c}$, but now searching for it I can not find it.

maybe the question was about $\sum_{k=1}^{+\infty} \frac {1}{ak^2+bk+c}$ originally but that does not help in finding the question.

I know I should have bookmarked it as a favourite, but how do the search gurus go about finding it? browsed the tag for for 300 to 500 without joy, but I am sure the latest activity on that question could have not been more than 3 days ago.

When viewing the questions by "newest" do they get ordered by date of the question or the latest activity data on it ( including edition of question and/or answers/comments ?

Thank you

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  • $\begingroup$ This? $\endgroup$ – t.b. Aug 14 '12 at 8:46
  • $\begingroup$ @t.b. yes, but how did you find it? PS: I updated my question before I got your answer. $\endgroup$ – jimjim Aug 14 '12 at 8:48
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    $\begingroup$ Sorry didn't see that update... I just had a look at the things filed under (sequences-series) and it was among the ten last active questions. There's no trick I can tell you about in this case. $\endgroup$ – t.b. Aug 14 '12 at 8:50
  • $\begingroup$ @t.b. : I started editing the update before your answer but posted it after you response. Also I ended up with another update. apologies are from me. $\endgroup$ – jimjim Aug 14 '12 at 8:54
  • $\begingroup$ It has always been difficult to search for mathematical entities without names, and this case is no different... $\endgroup$ – J. M. isn't a mathematician Aug 14 '12 at 9:44
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    $\begingroup$ Now that we have Approch0, thing might become simpler. Unfortunately, it seems that it is rather sensitive on difference between +\infty and \infty. $\endgroup$ – Martin Sleziak Jan 14 '17 at 17:22

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