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The @ key is also used to store values in @, @. @, @, and ©.
Two display formats are available for time and dates. Examples throughout this handbook use
the 12-hour time display mode although they apply equally to the 24-hour time display mode.
Similarly, the month, day, and year format is used for displaying dates in these examples, but you
can also select day, month, year format.
When you are working with the clock functions—watch, alarm, stopwatch or timer—your dis-
played answer may differ slightly from the answer given in this guide. That's becauseit will
take a few seconds to push the keys, during which time the HP-01 clock is incrementing. Your
HP-01 displays the correct answer; it may be greater or less, by a few seconds, than the
answer printed here.
If the display turns off while you are practicing these examples, simply press ) (read) to recall
the number.If you make a mistake, either press @& once to clearthe last entry, or press @ twice
and start the problem over again. Rememberto clear the calculator (@ @) if you are in doubt
as to the calculator status.
After you have mastered the basic functions, try some of the diverse problems in the
Applications section—you'll discover the amazing versatility of your HP-01.
A Word or Two About These Instructions
11
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