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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 on 9 Sep 2017

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https://nl.mathworks.com/matlabcentral/answers/355824-how-do-i-approximate-pi-using-queation-of-arctan-1-4-arctan-1-5-arctan-1-239

Edited: Walter Roberson on 9 Sep 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 on 9 Sep 2017

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https://nl.mathworks.com/matlabcentral/answers/355824-how-do-i-approximate-pi-using-queation-of-arctan-1-4-arctan-1-5-arctan-1-239#answer_280860

This may be helpfull:

https://br.answers.yahoo.com/question/index?qid=20090809111721AA7YUFZ

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