Hewlett-Packard HP 20b (Business Consultant)

Hewlett-Packard HP 20b
Image: Wikimedia CC BY-SA 3.0
The Hewlett-Packard HP 20b is a finance calculator with 10 digits precision and RPN (reverse polish notation) logic. It has 37 keys, and an LCD (liquid crystal) display. The power source is 2xCR2032 3V.

Facts at a glance:

Feature Value
Type: Finance
Keys: 37
Precision: 10
Logic: RPN
Display type: LCD
Length: 149mm
Width: 77mm
Thickness: 16mm
Weight: 113g
Power Source: 2xCR2032 3V
Year introduced: 2008

See other calculators by Hewlett-Packard