HP -65 Owner's Handbook Manual page 19

Sections 1 through 3 elaborate on the subject of calculating man-
ually. Section 1 tells how to set the display and how to enter
data in scientific format. Section 2 tells how to use the address-
able registers and to manipulate the stack, while Section 3 tells
how to use the built-in functions.
Section 4 covers the subject of programming, telling how to re-
vise (edit) your programs, how to have them repeat themselves,
to stop themselves, to make decisions, etc. The programming
section also illustrates the use of the program worksheets shipped
with you calculator.
The HP-65 Quick Reference Guide
The guide summarizes the more important procedures given in
this handbook and explains the key functions, arranged in order
of keyboard symbol for ease of reference. Use the guide to check
details. It can be carried in the soft case.
If we have not answered all of your questions, contact your near-
est HP office, or, if you are in the U.S., dial (408) 996-0100,
collect, and ask for Customer Service. We want you to be com-
pletely satisfied with your HP-65.