NRN2
static const long double RN2[NRN2 + 1] =
p = z * neval (z, RN2, NRN2) / deval (z, RD2, NRD2);
p = z * neval (z, RN2, NRN2) / deval (z, RD2, NRD2);
p = z * neval (z, RN2, NRN2) / deval (z, RD2, NRD2);