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how do i approximate pi using queation of arctan(1)=​4*arctan(1​/5)-arctan​(1/239) ?

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BINNAN YU
BINNAN YU el 9 de Sept. de 2017
Editada: Walter Roberson el 9 de Sept. de 2017
here is my thought:
step 1: use build in function taylor to expand arctan(x) to 10th truncation order.
step 2: create a function using the expansion outcome from step 1, and then plug into 1/5 and 1/239? I have not idea about it. Help!

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Jose Marques
Jose Marques el 9 de Sept. de 2017

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