| X01AAF | Provides the mathematical constant π |
| X01ABF | Provides the mathematical constant γ (Euler's Constant) |
| X02AHF | The largest permissible argument for sin and cos |
| X02AJF | The machine precision |
| X02AKF | The smallest positive model number |
| X02ALF | The largest positive model number |
| X02AMF | The safe range parameter |
| X02ANF | The safe range parameter for complex floating-point arithmetic |
| X02BBF | The largest representable integer |
| X02BEF | The maximum number of decimal digits that can be represented |
| X02BHF | The floating-point model parameter, b |
| X02BJF | The floating-point model parameter, p |
| X02BKF | The floating-point model parameter emin |
| X02BLF | The floating-point model parameter emax |
| X02DAF | Switch for taking precautions to avoid underflow |
| X02DJF | The floating-point model parameter ROUNDS |