Thomas Osler. Iterations for the Lemniscate Constant Resembling the Archimedean Algorithm for Pi. The American Mathematical Monthly, 123(1):90-93, 2016. [doi]
@article{Osler16,
title = {Iterations for the Lemniscate Constant Resembling the Archimedean Algorithm for Pi},
author = {Thomas Osler},
year = {2016},
url = {https://www.tandfonline.com/doi/abs/10.4169/amer.math.monthly.123.1.90},
researchr = {https://researchr.org/publication/Osler16},
cites = {0},
citedby = {0},
journal = {The American Mathematical Monthly},
volume = {123},
number = {1},
pages = {90-93},
}