Texas Instruments SR-40

Texas Instruments SR-40
Image: Joe Haupt, CC BY-SA 2.0
The Texas Instruments SR-40 is a scientific calculator with 8 digits precision and algebraic logic. It has 29 functions, 40 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The calculator was manufactured in USA.

Facts at a glance:

Feature Value
Type: Scientific
Functions: 29
Keys: 40
Precision: 8
Logic: Algebraic
Display type: LED
Length: 145mm
Width: 80mm
Thickness: 33mm
Country: USA
Year introduced: 1976
YearDiscontinued: 1977

See other calculators by Texas Instruments