| s17acc | nag_bessel_y0 Bessel function Y0 (x) |
| s17adc | nag_bessel_y1 Bessel function Y1 (x) |
| s17aec | nag_bessel_j0 Bessel function J0 (x) |
| s17afc | nag_bessel_j1 Bessel function J1 (x) |
| s18gkc | nag_complex_bessel_j_seq Bessel function of the 1st kind Jα ± n(z) |