| Subject | English | Italian |
| IT | double-precision floating-point calculation | calcolo in virgola mobile in doppia precisione |
| comp., MS | double-precision floating-point format | formato a virgola mobile a precisione doppia (A computer number format that occupies 8 bytes (64 bits) in computer memory and represents a wide dynamic range of values by using floating point) |
| IT, dat.proc. | floating-point precision | precisione in virgola mobile |