# Pi (AGM method) Calculator

## Calculates circular constant Pi using the Arithmetic-geometric mean method (AGM). | ||

The calculation ends when two consecutive results are the same. The accuracy of π improves by increasing the number of digits for calculation. In 1976, Salamin and Brent discovered the new algorithm for calculating Pi based on the Gauss’s AGM formula (1809). The algorithm is quadratically convergent and each step of the algorithm doubles the number of correct digits. |

Related links |

D.H. Bailey et al. "The Quest for Pi" (1996). |

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