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Section 4: Using HP-41C Functions 63
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the keyboard. Also included with your new HP-41C are pre-printed
sticky-labels printed with the name of each standard HP-41C
function. When you assign one of these functions to the
keyboard, simply place the pre-printed label in the appropriate
place on an overlay. This will help you remember where you have
placed functions on your customized HP-41C.
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In addition, the calculator itself helps you remember the names
and locations or reassigned functions! When you press and hold
a reassigned key in USER mode, the reassigned function name
appears in the display as a reminder.
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Note: Key assignments of standard HP-41C functions are
stored in program memory and use registers allocated to program
memory.
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Returning to the Normal Mode Function
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To reassign a key to its original normal mode function, simply
press g
ASN ALPHA
ALPHA and that key. For example, in
Introducing the HP-41C,
you assigned a HEAT program to the Σ+
key. To return the Σ+ function to
that key:
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Using Reassigned Functions
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Any function you have reassigned to a key location may be
used when the HP-41C is placed into USER mode. When you press
USER, all functions you have assigned
or reassigned to the keyboard become active. The standard functions
located in those key locations are no longer available. If a
key location has not been reassigned, it retains its normal function
in USER mode.
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Let’s try a sample problem. In the previous example, you
assigned the MEAN function to the
key.
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Cross-country runner Joel Dimor is
training for a 26-mile marathon in
Mexico City. Joel knows that the place
he sets for the race will determine how
well he holds up in the final miles. He
decides to run 10 miles five different
times to see how well he paces himself.
Below is a summery of the timings from
the five runs.
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