EllipticPi
Generated from the engine's own definition: compute-engine's symbol, which we neither extend nor document by hand. No examples yet — the crosswalk is the reason it has a page.
Elliptic integral of the third kind: complete Π(n|m) with two arguments, incomplete Π(n; φ|m) with three (characteristic first, amplitude second, parameter convention m = k², as in Mathematica).
Wikipedia
Complete elliptic integral of the third kindMathWorldCompleteEllipticIntegraloftheThirdKindWikidataQ109753363DLMF19.2.E8FungrimEllipticPi!Fungrim entryEllipticPi(complex | infinity, complex | infinity, (complex | infinity)?) -> numberas compute-engine declares it