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Casio fx-31

The Casio fx-31 is a scientific calculator with 8 digits precision and algebraic logic. It has 27 functions, 35 keys and a VFD (vacuum fluorescent) display. The power source is 2xAA batteries. The calculator was manufactured in Japan.

Facts at a glance:

Type Scientific
Functions 27
Keys 35
Precision 8
Logic Algebraic
Display type VFD
Display size
Length 145 mm
Width 84 mm
Thickness 25 mm
Weight 132 g
Power Source 2xAA
Country Japan
Original price unknown
Est. current value unknown
Year introduced 1978
Year discontinued 1980

See other calculators manufactured by Casio.