3:53 PM
Somebody has an idea how to reasonably tag this question?
2

This question was inspired by this Quora question. I'm sure lots of you are familiar with the fact that we have many different representations of $\pi$, things like  \begin{align} \pi & = \sqrt{6\zeta(2)} \\ & = \frac{4}{1 + \frac{1^2}{3 + \frac{2^2}{5 + \frac{3^2}{7 + \frac{4^2}{9 + \ddots}}}...

7 hours later…
10:44 PM
Just this evening I had to remove the twice. The second time was almost exclusively old questions. I wish we had a 20k rep limit on new tags.