Operation; Turning The Calculator On And Off; Using The +/- Key - Radio Shack EC-2037 Owner's Manual

OPERATION

TURNING THE CALCULATOR
ON AND OFF
USING THE +/– KEY
Press to change the displayed number from positive to neg-
+/–
ative or from negative to positive. When the number is negative,
– appears on the left side of the display.
4
Press to turn on your
ON/C
calculator, then tilt the display
to the best viewing angle.
To clear a calculation from the
display, press
ON/C
If you do not press a key for
about 5 minutes, your calcula-
tor automatically turns off. To
turn it off sooner, press
again.
.
OFF