Radio Shack EC-2037 Owner's Manual download pdf (Page 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.

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Radio Shack EC-2037 Owner's Manual Page 4