| g01eec | Upper and lower tail probabilities and probability density function for the beta distribution |
| g01fec | Deviates for the beta distribution |
| g01gec | Computes probabilities for the non-central beta distribution |
| g01sec | Computes a vector of probabilities for the beta distribution |
| g01tec | Computes a vector of deviates for the beta distribution |
| g05sbc | Generates a vector of pseudorandom numbers from a beta distribution |
| g05sec | Generates a vector of pseudorandom numbers from a Dirichlet distribution |
| s14cbc | Logarithm of the beta function ln(B,a,b) |
| s14ccc | Incomplete beta function Ix(a,b) and its complement 1 − Ix |