interrelations ♦ 21—21 of 21 matching pages ♦ SearchAdvancedHelp (0.001 seconds) 21—21 of 21 matching pages 21: 19.25 Relations to Other Functions … ► 19.25.28 Δ ( p , q ) = p s 2 ( u , k ) − q s 2 ( u , k ) = − Δ ( q , p ) , ⓘ Defines: Δ ( p , q ) : function (locally) Symbols: p q ( z , k ) : generic Jacobian elliptic function and k : real or complex modulus Permalink: http://dlmf.nist.gov/19.25.E28 Encodings: pMML, png, TeX See also: Annotations for §19.25(v), §19.25 and Ch.19 …