A 10-digit is displayed (including minus sign) however internal calculations use a 12-digit mantissa.Ī 28-year-old FX-702P in working condition Type Manufacturer Introduced 1981 Discontinued 1984 Calculator Entry mode Precision 12 digit mantissa, ☙9 exponent Display type Display size 20 Characters CPU Processor Programming Programming language(s) User memory 1,680 bytes Interfaces Ports one vendor specific Connects to via: The subroutine can be up to 10 deep Both lines and subroutines can be via line number calculation.