Appendix A. Appendix
The following are two exotic, rapidly converging, infinite series π equations from the famed Ramanujan and the Chudnovsky brothers. These turbocharged π equations require, at most, two iterations to give a π value of fifteen decimal place accuracy. The Chudnovsky brothers' equation was derived from Ramanujan's formula, and the Chudnovsky algorithm was used in December 2009 to calculate π to an accuracy of 2.7 trillion digit, five trillion digits in August 2010, ten trillion digits in October 2011, and 12.1 trillion digits in December 2013. For a more in-depth historical perspective, please see the following links:
- https://en.wikipedia.org/wiki/Chudnovsky_algorithm
- https://en.m.wikipedia.org/wiki/Chudnovsky_brothers
- https://en.m.wikipedia.org/wiki/Approximations_of_%CF%80
- https://en.wikipedia.org/wiki/Srinivasa_Ramanujan
- https://en.wikipedia.org/wiki/Pi
- https://en.wikipedia.org/wiki/List_of_formulae_involving_%CF%80
- https...
