The Kby Oo - HP -25 Owner's Handbook Manual

Press [EBd now, and the stack contents are changed . . .
... from this . . . . . . to this.
T 4.00 T| 4.00
Z 3.00 Z| 3.00
Y 1.00 Y 1.00
X 2.00 Display X| 0.00 Display
You can verify that only the X-register contents are affected by
EE3 by using the [I key to review the other stack contents.
If you press " [511], the contents of the stack are changed. . .
... fromthis . . . . . to this.
T 4.00 T| 0.00
Zz 3.00 Z 0.00
Y 1.00 Y 0.00
X 0.00 Display X 0.00 Display
The Key
When you key a number into the calculator, its contents are
written into the displayed X-register and the other registers re-
main unchanged. For example, if you keyed in the number
314.32, your stack registers would look like this:
Name Register
T 0.00
Z 0.00
Y 0.00
X 314.32 Display
In order to key in a second number at this point, you must
separate the digits of the first number from the digits of the
second.
One way to separate numbersis to press . Press ENEY
to change the contents of the registers . . .
... fromthis. .. . . . to this.
T 0.00 T |0.00
Z 0.00 Z 0.00
Y 0.00 Y |314.32
X 314.32 Display X 314.32 Display