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Sinclair Scientific

Sinclair Scientific
Image: wass.net used with permission

The Sinclair Scientific is a scientific calculator with 8 digits precision and RPN (reverse polish notation) logic. It has 17 functions, 18 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 4xAAA.

Facts at a glance:

FeatureValue
TypeScientific
Functions17
Keys18
Precision8
LogicRPN
Display typeLED
Length112mm
Width51mm
Thickness18mm
Weight56g
Power Source4xAAA
Original price$69
Year introduced1974
Year discontinued1975

Replacements:

If you have a Sinclair Scientific that is no longer working, you can first try replacing the 4xAAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Sinclair