HP HP-20S - Assistance, Batteries, Memory, and Service; Obtaining Help and Common Questions

Assistance, Batteries, Memory,
and Service
Obtaining Help in Operating the Calculator
We at Hewlett-Packard are committed to providing you with ongoing
support. You can obtain answers to questions about using the calcu-
lator from our Calculator Support department.
Please read “Answers to Common Questions” before contacting us.
Our experience has shown that many of our customers have similar
questions about our products. If you don’t find an answer to your
question, you can contact us using the address or phone number
listed on the inside back cover.
Answers to Common Questions
Q. I'm not sure if the calculator is malfunctioning or if I'm doing
something incorrectly. How can I determine if the calculator is operat-
ing properly?
A. Refer to page 116, which describes the diagnostic self-test.
Q. My numbers contain commas instead of periods as decimal points.
How do I restore the periods?
A. Press (H] (page 19).
Q. How do I change the number of decimal places the HP-20S
displays?
A. The procedure is described in “Display Format of Numbers” on
page 16.
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