[sf.cmath.comp.ellint.1] (original) (raw)

29 Numerics library [numerics]

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

29.7.6 Mathematical special functions [sf.cmath]

29.7.6.5 Complete elliptic integral of the first kind [sf.cmath.comp.ellint.1]

_floating-point-type_ comp_ellint_1(_floating-point-type_ k);float comp_ellint_1f(float k);long double comp_ellint_1l(long double k);

Effects: These functions compute the complete elliptic integral of the first kind of their respective argumentsk.

Returns: K(k), where K is given by Formula 29.25 andk is k.