Chain Calculations In Rpn Mode; Work From The Parentheses Out - HP 33s User Manual

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9.5 15
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8.7
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Chain Calculations in RPN mode

In RPN mode, the automatic lifting and dropping of the stack's contents let you
retain intermediate results without storing or reentering them, and without using
parentheses.

Work from the Parentheses Out

For example, solve (12 + 3)
If you were working out this problem on paper, you would first calculate the
intermediate result of (12 + 3) ...
... then you would multiply the intermediate result by 7:
Solve the problem in the same way on the HP 33s, starting inside the
parentheses:
Keys:
Ï Ù
12 3
You don't need to press
proceeding; since it is a calculated result, it is saved automatically.
Keys:
¸
7
  _ 

 

 

 

7.
(12 + 3) = 1 5
(15) 7 = 105
Display:
Calculates the intermediate result first.

Ï
to save this intermediate result before
Display:
Pressing the function key produces the

answer. This result can be used in
further calculations.
RPN: The Automatic Memory Stack
Speed of light, c.
Meters to R. Centaurus.
Retrieves c.
Meters to Sirius.
Description:
Description:
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