| G01EFF | Computes probabilities for the gamma distribution |
| G01FFF | Computes deviates for the gamma distribution |
| G02GDF | Fits a generalized linear model with gamma errors |
| G05LFF | Generates a vector of random numbers from a γ distribution, seeds and generator number passed explicitly |
| S14AAF | Gamma function |
| S14ABF | Log Gamma function |
| S14BAF | Incomplete Gamma functions P(a,x) and Q(a,x) |
| X01ABF | Provides the mathematical constant γ (Euler's Constant) |