| S18ACF | Modified Bessel function K0(x) |
| S18ADF | Modified Bessel function K1(x) |
| S18AEF | Modified Bessel function I0(x) |
| S18AFF | Modified Bessel function I1(x) |
| S18AQF | Modified Bessel function vectorized K0(x) |
| S18ARF | Modified Bessel function vectorized K1(x) |
| S18ASF | Modified Bessel function vectorized I0(x) |
| S18ATF | Modified Bessel function vectorized I1(x) |
| S18CCF | Scaled modified Bessel function exK0(x) |
| S18CDF | Scaled modified Bessel function exK1(x) |
| S18CEF | Scaled modified Bessel function e − |x|I0(x) |
| S18CFF | Scaled modified Bessel function e − |x|I1(x) |
| S18CQF | Scaled modified Bessel function vectorized exK0(x) |
| S18CRF | Scaled modified Bessel function vectorized exK1(x) |
| S18CSF | Scaled modified Bessel function vectorized e − |x|I0(x) |
| S18CTF | Scaled modified Bessel function vectorized e − |x|I1(x) |