double comp_ellint_3(double k, double 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.
Returns: Π(ν, k) = Π(ν, k, π / 2), for |k| ≤ 1 where k is k and nu is nu.
See also [sf.cmath.ellint_3].