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S Jan 2, 2021 at 22:05 history suggested Karl Kronenfeld CC BY-SA 4.0
Corrected backward inequality, fixed expansion of R_n
Jan 2, 2021 at 21:19 review Suggested edits
S Jan 2, 2021 at 22:05
Jul 28, 2020 at 19:59 comment added NULL Your answer has been cited in this paper that I was just reading, mentioning it here as a token of appreciation: arxiv.org/pdf/2005.10009.pdf
Jul 13, 2013 at 6:45 vote accept RandomStudent
Jul 1, 2013 at 16:58 comment added Johan Wästlund +1, and let me challenge your statement that the Wallis product is not as elementary, by pointing to the Monthly note math.chalmers.se/~wastlund/monthly.pdf and the 16th Christmas Tree Lecture by Don Knuth, "Why pi?" (now on youtube).
Jul 1, 2013 at 13:46 history edited David E Speyer CC BY-SA 3.0
Added missing square in second displayed equation
Jul 1, 2013 at 4:04 history answered Noam D. Elkies CC BY-SA 3.0