The case of the Weierstraß Elliptic Function with invariants and .
See also Equianharmonic Case, Weierstraß Elliptic Function, Pseudolemniscate Case
References
Abramowitz, M. and Stegun, C. A. (Eds.). ``Lemniscate Case (, ).'' §18.14 in
Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing.
New York: Dover, pp. 658-662, 1972.