| H2a1: | Finite interval (general integrand) | (11 routines) |
| H2a2: | Finite interval (specific or special type integrand including weight functions, oscillating and singular integrands, principal value integrals, splines, etc.) | (7 routines) |
| H2a3: | Semi-infinite interval (including weight function) | (3 routines) |
| H2a4: | Infinite interval (including weight function) | (2 routines) |