An archaic term for a continued fraction.
Anthyphairetic Ratio
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References
Fowler, D. H. The Mathematics of Plato's Academy: A New Reconstruction, 2nd ed. New York: Oxford University Press, 1987.Referenced on Wolfram|Alpha
Anthyphairetic RatioCite this as:
Weisstein, Eric W. "Anthyphairetic Ratio." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/AnthyphaireticRatio.html