EllipticE
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 second kind: complete E(m) with one argument, incomplete E(φ|m) with two (amplitude first, parameter convention m = k², as in Mathematica).
Wikipedia
Elliptic integralComplete elliptic integral of the second kindMathWorldCompleteEllipticIntegraloftheSecondKindWikidataQ109753012DLMF19.2.E8FungrimEllipticE!Fungrim entryEllipticE(complex | infinity, (complex | infinity)?) -> numberas compute-engine declares it