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

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!

Answer 1

[Jose Marques]

This may be helpfull:

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