HP 9g User Manual page 70

• Quotient : Z
When the message "1 : + ", " 2 : – ", " 3 : × ", " 4 : / " appears on the
display, you can input a value for " O " that corresponds to
the type of operation you want to performed, as follows:
1 for Z
3 for Z
(1)
Z = E + F i =
1 2
+ Z
1 2
× Z
1 2
RUN
2 for Z – Z
1
4 for Z
1
E-70
2
Z
2