A parameter 
used to specify an elliptic integral
of the third kind 
.
Elliptic Characteristic
See also
Elliptic Integral, Elliptic Modulus, Jacobi Amplitude, Modular Angle, Nome, ParameterExplore with Wolfram|Alpha
References
Abramowitz, M. and Stegun, I. A. (Eds.). Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing. New York: Dover, p. 590, 1972.Referenced on Wolfram|Alpha
Elliptic CharacteristicCite this as:
Weisstein, Eric W. "Elliptic Characteristic." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/EllipticCharacteristic.html