The case of the Weierstraß Elliptic Function with invariants and .
See also Equianharmonic Case, Lemniscate Case
References
Abramowitz, M. and Stegun, C. A. (Eds.). ``Pseudo-Lemniscate Case (, ).'' §18.15 in
Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing.
New York: Dover, pp. 662-663, 1972.