HP HP-20S - Reusing the Previous Result (LAST)

16.9 16.9_
(-] 8 8.9000 evaluates expression
inside parentheses.
2.9833 Calculates \/8.9 .
(=) 1.2260 Completes the
calculation.
Reusing the Previous Result (LAST)
When you start a new calculation, a copy of the last result
is stored in the LAST register. To recall that value to the
display, press (5] (LAST]. For example, LAST shortens the
following two calculations:
0.0821 x (18 + 273.1)
2 + 13
0.0821 x (18 + 273.1)
Keys: Display: Description:
.0821 [(x][((] 18 Displays first result,
273.1 (=] 23.8993 which is stored in
LAST, when next cal-
culation is started.
Closing parenthesis is
optional.
2 13 (] (=] 23.8993 («) recalls the
previous result.
(=] 2.5439 Second result.
2: Arithmetic and Storage Registers 25