28 Numerics library [numerics]

28.7 Mathematical functions for floating-point types [c.math]

28.7.6 Mathematical special functions [sf.cmath] Complete elliptic integral of the third kind [sf.cmath.comp.ellint.3]

floating-point-type comp_ellint_3(floating-point-type k, floating-point-type nu); float comp_ellint_3f(float k, float nu); long double comp_ellint_3l(long double k, long double nu);
Effects: These functions compute the complete elliptic integral of the third kind of their respective arguments k and nu.
where k is k and ν is nu.