Chain
Calculations
The speed and simplicityof calculatingwith the HP-32S are apparent
during
chain
calculations
(that is, calculations with more than one op
eration). Even during the longest of calculations,
you
still
work
with
only
one
or
two
numbers
ata
time—the
automaticmemorystackstores
intermediate results until you need them, then it inserts them into the
calculation.*
• This method requires fewer keystrokes than other calculator logic
does,
and
it adapts itself naturally to programming.
• The process of working through a problem is the same as working
it out on paper, but the calculator does the hard part.
For example, solve (12 + 3) x 7.
Work From
the
Parentheses
Out. If you were working this prob
lem out on paper, you would first calculate the intermediate result of
(12 +
3)...
15
(12-i=-3)
x 7 =
.. .and then you would multiply the intermediate result by 7.
15
x 7 =
105
Solve the problem in the same way on the HP-32S, starting inside the
parentheses.
Keys:
Display:
Description:
12
I
enter
I 3
|T|
15.0000
Calculates
the
interme
diate
result
first.
You
don't need to press I
enter
Ito save this intermediate result before
proceeding. Since it is a calculated result, it is saved automatically.
* Don't worry
now
about the
automatic
(RPN)
memory
stack and
how
it works. The stack is
explained in chapter 2.
26
1:
Getting
Started
To Next Page
Loading...
