Radio Shack EC-2037 - Manual (Page 4)

4
OPERATION
TURNING THE CALCULATOR
ON AND OFF
Press ON/C to turn on your
calculator, then tilt the display
to the best viewing angle.
To clear a calculation from the
display, press
ON/C again.
If you do not press a key for
about 5 minutes, your calcula-
tor automatically turns off. To
turn it off sooner, press
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.