Extra Credit: does the series converge on the endpoints x=-1,1? If so, what other (perhaps more elegant) infinite series can we write down for π?
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A proof of today's @AnalysisFact tweet.
The series expansion for arctan(x) & an infinite series for π.pic.twitter.com/twTXKGtIay
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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You can also derive the arctan series without calculus: http://angrystatistician.blogspot.com/2015/01/young-alan-turing.html?m=1 …
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That is really cool!!!
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