Reusing The Previous Result (.1 Last I); Swapping The Displayed Number With The Previous Number - HP -22S Owner's Manual

Scientific calculator
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Reusing the Previous Result ,.,
LAST
I)
When you start a new calculation, a copy of the most recent result is
stored in the LAST register. To recall that value to the display, press
.1
LAST I.
For example, LAST shortens the following two calculations:
.0821 x (18+273.1)
13
2 + .0821 x (18 + 273.1)
Keys:
Display:
Description:
.0821
0
rn
18 G
First result.
273.1
OJ 0
23.8993
2 G 13 G.ILASTI
';'23.8993
.1
LAST
1
recalls the pre-
vious result.
0
2.5439
Second result.
Swapping the Displayed Number With the
Previous Number
.1
SWAP 1
exchanges the last two numbers you've keyed
in
during a
calculation. For example, if you've keyed in
44
G
75,
.1
SWAP
1
re-
verses the order of the numbers to 75 -:- 44. Pressing
.1
SWAP 1
again
restores 44 -:- 75.
Keys:
Display:
Description:
44
[B 75
75
Oops! You meant to
key in 75 -:- 44 .
• 1 SWAP 1
';'44.0000
Swaps the 75 and 44.
0
1.7045
Completes the
calculation.
36
2: Arithmetic and Variables

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