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Replacement procedure
1. Turn the power off by pressing . c .
2. Loosen the screw and remove the battery
cover. (see fi g. 1)
3. Remove the used battery using a ball-point
pen or similar object. Do not use a mechanical
pencil or any sharp or pointed object to remove
the battery. (see fi g. 2)
4. Install one new battery. Make sure the "+" side
is facing up.
5. Replace the battery cover and the screw.
6. Press the RESET switch located on the back
of the calculator with the tip of a ball-point pen
or similar object. Do not use an object with a
breakable or sharp tip. (see fi g. 3)
• Make sure that the display appears as shown.
If not, remove the battery, reinstall, and check the display
again.
Automatic power-off function
This calculator will turn its power off automatically if no key is
pressed for about 10 minutes.
Priority Levels in Calculations
This calculator performs operations according to the following
priority:
1. Functions preceded by their argument ( x
x
x
2. y
,
3. Implied multiplication of a memory value (2Y, etc.)
4. Functions followed by their argument (sin, cos, etc.)
5. Implied multiplication of a function (2sin 30, etc.)
6. nCr, nPr
÷
7.
,
+
8.
, –
9. =, M+, M–,
000
M, and any other calculation ending instructions
81
fi g. 1
fi g. 2
fi g. 3
2
, n!, etc.)
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