pub(crate) fn d_polyeval14( x: f64, a0: f64, a1: f64, a2: f64, a3: f64, a4: f64, a5: f64, a6: f64, a7: f64, a8: f64, a9: f64, a10: f64, a11: f64, a12: f64, a13: f64, ) -> f64