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Section 5: Storing and Recalling Numbers and ALPHA Strings69
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2.
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Press the number keys of the applicable register address (00 through 99).
Addresses must be 2 digits, e.g., 01, 02, or 50.
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For example, to recall the distance to Andromeda’s Great Spiral
stored in register R12:
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RCL _ _
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2,200,000.0000
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0.0000
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Recalling a number into the X-register causes the stack contents to lift.
That is, previous X value is lifted into the Y-register, the previous Y
into the Z-register, the previous Z into the T-register. The previous
value in the T-register is lost off the top of the stack.
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Storing and Recalling in Stack Registers
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Using the HP-41C, you can even store and recall numbers into and from the
stack and LAST X registers. All you have to do is press
· (decimal point) and X, Y, Z, T, or
L (for LAST X) as the register address. When the HP-41C prompts you for the
address, simply press the associated letter key (X, Y, Z, T, or L)—there
is no need to enter ALPHA mode. For example, to store the number 19 into the
Z-register of the stack:
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19 _
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STO _ _
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STO ST _
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19.0000
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0.0000
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Now, recall the value from the Z-register:
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