Calcus
See also
Half, Quarter, Scruple, Uncia, Unit FractionExplore with Wolfram|Alpha
References
Wells, D. The Penguin Dictionary of Curious and Interesting Numbers. New York: Penguin Books, p. 85, 1986.Referenced on Wolfram|Alpha
CalcusCite this as:
Weisstein, Eric W. "Calcus." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Calcus.html