| 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 |
| X03AAF | Real inner product added to initial value, basic/additional precision |
| X03ABF | Complex inner product added to initial value, basic/additional precision |
| X04AAF | Return or set unit number for error messages |
| X04ABF | Return or set unit number for advisory messages |
| X04ACF | Open unit number for reading, writing or appending, and associate unit with named file |
| X04ADF | Close file associated with given unit number |
| X04BAF | Write formatted record to external file |
| X04BBF | Read formatted record from external file |
| X05AAF | Return date and time as an array of integers |
| X05ABF | Convert array of integers representing date and time to character string |
| X05ACF | Compare two character strings representing date and time |
| X05BAF | Return the CPU time |
| X07AAF | Determines whether its argument has a finite value |
| X07ABF | Determines whether its argument is a NaN (Not A Number) |
| X07BAF | Creates a signed infinite value. |
| X07BBF | Creates a NaN (Not A Number) |
| X07CAF | Gets current behaviour of floating point exceptions |
| X07CBF | Sets behaviour of floating point exceptions |