HP 9100B Operating & Programming Manual page 19

KNOW YOUR 91008
Program steps and data cannot both be stored in any one regis-
ter at the same time. Each data number requires a complete
register (14 characters) for storage, thus for each data number
stored the maximum possible number of program steps is re-
duced by 14.
The remaining two registers (
+)
e
and ( +)
F ,
on each page,
are used for data storage only.
X
keyboard -
this register displays numbers as they are entered
from the keyboard, one digit at a time.
NOTE
lf the calculator is currently running a program,
press STOP to stop the program.
EXAMPLE:
Enter 6.34 in the X register.
Set the switches above the keyboard to the following
positions:
SWITCH: FIXED POINT
SWITCH: RUN
SET
DECIMAL 2
DIGITS:
Press the keys in the order shown:
PRESS:
CLEAR
6
• 3 4
DISPLAY:
5
::1u
X
.::I"?
~
("6.34 appears in the X register")