Chudnovsky algorithm
Fast method for calculating the digits of π / From Wikipedia, the free encyclopedia
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The Chudnovsky algorithm is a fast method for calculating the digits of π, based on Ramanujan's π formulae. Published by the Chudnovsky brothers in 1988,[1] it was used to calculate π to a billion decimal places.[2]
It was used in the world record calculations of 2.7 trillion digits of π in December 2009,[3] 10 trillion digits in October 2011,[4][5] 22.4 trillion digits in November 2016,[6] 31.4 trillion digits in September 2018–January 2019,[7] 50 trillion digits on January 29, 2020,[8] 62.8 trillion digits on August 14, 2021,[9] 100 trillion digits on March 21, 2022,[10] and 105 trillion digits on March 14, 2024.[11]