Hewlett-Packard 12C Tutorial
To begin, look at the face of the calculator.
Every key (except the arithmetic function keys in the
far right column and the five keys on the bottom left row) has two or three functions: each key’s
primary function is noted in white on the key itself, while each key’s secondary function is noted in
gold above the key or in blue on the lower face of the key.
To use the function on the key, simply
press the key.
To access the gold function above each key, first press the gold
key, which we
will call the “gold shift” key, and then press the desired function key.
(Note that the gold shift key
is near the lower left corner of the calculator keyboard.)
To access the blue function on the bottom
of each key, first press the blue
key, which we will call the “blue shift” key, and then press
the desired function.
(The blue shift key is located just to the right of the gold shift key.
Turning the Calculator On and Off
To turn on the calculator, press
Note that the ON key is on the lower left corner of the keyboard—the face of they has a white
Also, we will designate keys throughout this tutorial by the use of small boxes, as above.
To conserve the battery, the calculator turns itself off about 10 minutes after your last keystroke.
To turn the calculator off, press
Also, note that pressing the gold shift key places a little “f” symbol in the lower left corner of the
Pressing the blue shift key places a little “g” at the bottom of the display.
key and the symbol goes away.
The shift keys are toggle keys that switch back and forth between
the “regular” and the “gold” or “blue” functions.
They are like the typewriter shift key.
press the “gold” (or “blue”) key, look only at gold (or blue) writing.
Note that the calculator has a continuous memory, so turning it off does not affect any data stored
in the calculator.
Clearing the Calculator
Clearing the calculator is very important, since unwanted data in memory can result in improper
calculations, and hence wrong answers.
It is best to get into the habit of automatically clearing
memory before starting a calculation.
Occasionally, you may purposely want to save data, but, in
general, you will be entering all new data, so starting with a clear memory is the safest approach.