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HP 12C Operating modes and clearing procedures

hp calculators - 3 - HP 12C Operating modes and clearing procedures - Version 1.0

There is also a scientific notation mode that shows numbers with seven significant digits and the exponent of ten. This is

useful if a number is too large to be displayed normally or if a number needs to be displayed in this manner to be

consistent with other values.

Figure 5

If there is a need to change the radix mark from dot (default) to comma and conversely, the HP12C allows toggling from

one to the other with the following sequence:

• with the calculator off, press and hold .;

• turn the calculator on;

• release ..

Figure 6

Settings and annunciators

Figure 7 shows all annunciators that may become visible in an HP12C display when in normal operation:

Figure 7

Their meanings are:

∗ (flashing)

the batteries are nearly exhausted and must be replaced

f or g

the corresponding f or g key was pressed and its action is still active; press fX to override

BEGIN

the keystroke sequence g× was performed to indicate that payments occur in the beginning of the

composition periods; to change back to end mode and deactivate the annunciator, press gÂ.

D.MY

the keystroke sequence gÔ was performed to indicate that dates are entered and shown in

DD.MMYYYY format; to changes modes to M.DY and deactivate the annunciator, press gÕ.

the keystroke sequence ?É was performed to indicate that odd-periods are considered with

compound interest rate when TVM operations are performed; press ?É again to toggle the

annunciator condition and use simple interest for odd-periods.

PRGM

either program mode is active or a program is running. If program mode is active, press fs to return

to normal operation and deactivate the annunciator; if

is flashing in the display then a

program is being executed and pressing t will stop it.

Note that if

is flashing in the display and the

PRGM

annunciator is not shown, then an internal function is

being performed and pressing t will not stop it.

HP 12C User Manual

Other manuals for HP 12C