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Section 2: Registers 28
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Recalling a number does not remove it from the storage register. Rather, a copy of the stored number is transferred to
the display—the original remains in the storage register until either: (1) a new number is stored in the same register,
(2) the calculator is turned off, or (3) all nine storage registers are cleared by pressing fREG. Recalling a number
from a register will cause the stack to lift unless the lift is disabled.
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Sample Case 1. A customer has bought three items priced at $1,000, $2,000, and $3,000, respectively.
Your policy is to grant a 5% discount on all purchases over $500. How much will the customer pay for each of the
three items? What is the total cost?
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Solution:
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Press
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See Displayed
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Comment
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1 ENTER .05 – STO 1
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Stores constant 0.95 (95%) in register R1.
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1000 RCL 1 ×
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Amount customer will pay for first item.
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2000 RCL 1 ×
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Amount customer will pay for second item.
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3000 RCL 1 ×
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Amount customer will pay for third item.
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+ +
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Total cost.
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Sample Case 2. The capacity and height of three tanks are listed below in U.S. units. What is the capacity and
height of each tank in metric units?
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Capacity (gal.)
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Height (in.)
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Tank 1
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Tank 2
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Tank 3
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Remember that: 1 U.S. gallon
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=
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3.7854 liters
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Remember that: 1 inch
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=
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2.5400 centimeters
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