Function rgsl::elliptic::legendre::incomplete::ellint_E_e

pub fn ellint_E_e(phi: f64, k: f64, mode: Mode) -> (Value, Result)

This routine computes the incomplete elliptic integral E(\phi,k) to the accuracy specified by the mode variable mode. Note that Abramowitz & Stegun define this function in terms of the parameter m = k^2.