# Pi (ATAN two terms) Calculator

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

 method J. Machin 1706J. Hermann 1706L. Euler 1738L. Euler/G. Vega 1755C. Hutton 1776 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit
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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