HP 17BIIPLUS

44 2: Arithmetic
Pressing
@c
clears the history stack. Be careful if a menu is
active, because then
c
also erases the data associated with that
menu.
Keys: Display: Description:
75.55
-
32.63
=
"
+$&,$"
150
/
7
=
$#&+%"
42.92 moves out of
display.
Now, suppose you want to multiply 42.92 x 11. Using the history stack
saves you time.
]
+$&,$" Moves 42.92 back to
calculator line.
*
11
=
+-$&#$"
Reusing the Last Result (
@L
)
The
@L
key copies the last result―that is, the number just above
the calculator line in the history stack―into a current calculation.
This lets you reuse a number without retyping it and also lets you break
up a complicated calculation.
+
+
39 8
123 17
Keys: Display: Description:
123
+
17
=
#+(&((" Calculates 123 + 17.
@ v
##&*%"
Calculates 140 .
39
+
8
=/
@L
"
+-&((D##&*%"
Copies 11.83 to the
calculator line.
=
%&,-" Completes the calculation.
v
v