Function rgsl::interpolation::eval_integ

pub fn eval_integ(interp: &Interp, xa: &[f64], ya: &[f64], a: f64, b: f64, acc: &mut InterpAccel) -> f64

This function returns the numerical integral result of an interpolated function over the range [a, b], using the interpolation object interp, data arrays xa and ya and the accelerator acc.