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HP 35s User Manual Page 59

Scientific calculator.
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Keys:

Now study the following examples. Remember that you need to press
to separate sequentially-entered numbers, such as at the beginning of an
expression. The operations themselves (
numbers and save intermediate results. The last result saved is the first one retrieved
as needed to carry out the calculation.
Calculate 2
(3 + 10):
Keys:


Calculate 4
[14 + (7
Keys:



Problems that have multiple parentheses can be solved in the same manner using
the automatic storage of intermediate results. For example, to solve (3 + 4)
on paper, you would first calculate the quantity (3 + 4). Then you would calculate (5
+ 6). Finally, you would multiply the two intermediate results to get the answer.
Work through the problem the same way with the HP 35s, except that you don't
have to write down intermediate answers—the calculator remembers them for you.
Keys:


Display:
Pressing the function key produces the

answer. This result can be used in
further calculations.
,
Display:


3) – 2] :
Display:




Display:


RPN: The Automatic Memory Stack
Description:
, etc.) separate subsequent
Description:
Calculates (3 + 10) first.
Puts 2 before 13 so the division is
correct: 2
13.
Description:
Calculates (7
Calculates denominator.
Puts 4 before 33 in preparation for
division.
Calculates 4
Description:
First adds (3+4)
Then adds (5+6)
only
3).
33, the answer.
(5 + 6)
2-13

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F2215aa - 35s scientific calculator

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