Generalizations of elliptic integrals appear in analysis of modular theorems of
Ramanujan (Anderson et al. (2000)); analysis of Selberg integrals
(Van Diejen and Spiridonov (2001)); use of Legendre’s relation (19.7.1) to
compute to high precision (Borwein and Borwein (1987, p. 26)).
Elliptic integrals appear in lattice models of critical phenomena
(Guttmann and Prellberg (1993)); theories of layered materials
(Parkinson (1969)); fluid dynamics (Kida (1981)); string theory
(Arutyunov and Staudacher (2004)); astrophysics (Dexter and Agol (2009)).