Pi (ATAN two terms) Calculator

Calculates circular constant Pi using arc tangent (ATAN) series with two terms.

method

The calculation ends when two consecutive results are the same.
The accuracy of π improves by increasing the number of digits for calculation.

Since the discovery of calculus in the 17th century, many mathematicians attempted to calculate Pi using the method of ATAN series expansion.


    Pi (ATAN two terms)
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