Special Displays - HP 12C Platinum Owner's Handbook Manual

To set the display format to scientific notation, press f.. For example
(assuming the display still shows 14.87456320 from the preceding example):
Keystrokes
f.
The exponent in this example indicates that the decimal point should be moved
one decimal place to the right, giving the number 14.87456, which is the first
seven digits of the number previously in the display.
To set the display back to standard display format, press f followed by the
desired number of decimal places. Scientific notation display format remains in
effect until you change to the standard display format; it is not reset each time the
calculator is turned on. However, if Continuous Memory is reset, when the
calculator is next turned on the standard display format, with two decimal places,
will be used.
Mantissa Display Format. Because both the standard display format and
scientific notation display format often show only a few digits of a number, you
may occasionally want to see all 10 digits – the full mantissa – of the number
inside the calculator. To do so, press fCLEAR X and hold down the X
key. The display will show all 10 digits of the number as long as you hold down
the X key; after you release the key, the number will again be displayed in the
current display format. For instance, if the display still contains the result from
the preceding example:
Keystrokes
fCLEAR X
f2

Special Displays

Running. Certain functions and many programs may take several seconds or
more to produce an answer. During these calculations, the word running flashes
in the display to let you know that the calculator is running.
Overflow and Underflow. If a calculation results in a number whose magnitude
is greater than 9.999999999 × 10
displays 9.999999 99 (if the number is positive) or –9.999999 99 (if the
number is negative).
Section 5: Additional Operating Features
Display
1.487456 01
Display
All 10 digits of the number inside
1487456320
the calculator.
1.487456 01 Display returns to its former
contents when the X key is
released.
Returns display to standard format.
14.87
99
, the calculation is halted and the calculator
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