HP -65 Owner's Handbook Manual page 17

Putting the Function in Memory
1. Set W/PRGM-RUN switch to W/PRGM and press
to clear the program memory.
2. Press the keys in the order shown:
Key(s) Comment
LBL .. .
Defines beginning of function [[§.
O
ENTER4
ENTER4
Calculates x2.
X
x
0] Definesthe end of function [[§.
If (for now) you make a mistake, clear the program and start
over. In section 1 you will learn how to correct mistakes and the
meaning of the numbers in the display. The calculator has now
"learned" to calculate x* when you press [[§ in RUN mode.
Testing the Function
= Switch W/PRGM-RUN switch to RUN.
® Key in a number and press [[§. You should see the cube
of the nymber.
Press See Displayed Comment
2@ X 2
3@ 27.00 3
+0 64.00 #
5 cns @ BN (—5)