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Section 1: Getting Started22
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Clearing Operations
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The
CL X/A
Key
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CLX/A is a dual purpose key that is used to clear
the display. When the HP-41C is in ALPHA mode and you press
CLX/A, only the
CLA (clear ALPHA) function is performed.
The display is blanked when you press
CLA in ALPHA mode.
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When the HP-41C is not in ALPHA mode, that is, in normal mode,
pressing
CLX/A performs only the
CLX function. The display (X-register) is cleared
to zero when you press
CLX in normal mode. (Clearing registers is covered
later, so don't worry about it yet.)
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First, since we are still in normal mode, let's clear the display
(X-register) to zero.
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Now, to see how CLA works in ALPHA mode, write
the word SOLAR in the display and then clear it:
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The
(Correction) Key
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You can delete one character at a time in the display using the
key. In ALPHA mode, each press of
deletes one right-most character. Notice how
the ‘‘_’’ (underscore) prompt moves back. For example:
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