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2–12 The Automatic Memory Stack
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
To Rigel Centaurus: 4.3 yr
×
(9.5
×
10
15
m/yr).
To Sirius: 8.7 yr
×
(9.5
×
10
15
m/yr).
Keys: Display: Description:
4.3
)
Light–years to Rigel Centaurus.
9.5
`
15
)
Speed of light, c.
y
)
Meters to R. Centaurus.
8.7
z
)
Retrieves c.
y
)
Meters to Sirius.
Chain Calculations
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)
×
7.
If you were working out this problem on paper, you would first calculate the
intermediate result of (12 + 3) ...
(12 + 3) = 15
… then you would multiply the intermediate result by 7:
(15)
×
7 = 105
Solve the problem in the same way on the HP 32SII, starting inside the
parentheses:
Keys: Display: Description:
12
3
)
Calculates the intermediate result first.