Casio Calculator FX-300ESPLUS User Manual

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E-29
Argument ERROR
Cause: A non-integer argument was input for the random number function
(RanInt#).
Action: Input only integers for the argument.
Before Assuming Malfunction of the
Calculator...
Perform the following steps whenever an error occurs during a calculation
or when calculation results are not what you expected. If one step does not
correct the problem, move on to the next step.
Note that you should make separate copies of important data before
performing these steps.
1. Check the calculation expression to make sure that it does not contain any
errors.
2. Make sure that you are using the correct mode for the type of calculation
you are trying to perform.
3. If the above steps do not correct your problem, press the O key. This will
cause the calculator to perform a routine that checks whether calculation
functions are operating correctly. If the calculator discovers any abnormality,
it automatically initializes the calculation mode and clears memory contents.
For details about initialized settings, see “Configuring the Calculator Setup”.
4. Initialize all modes and settings by performing the following operation:
19(CLR) 1(Setup) =(Yes).
Replacing the Battery
A low battery is indicated by a dim display, even if contrast is adjusted, or by
failure of figures to appear on the display immediately after you turn on the
calculator. If this happens, replace the battery with a new one.
Important: Removing the battery will cause all of the calculator’s memory
contents to be deleted.
1. Press 1A(OFF) to turn off the calculator.
Screw
• To ensure that you do not accidentally turn on power
while replacing the battery, slide the hard case onto the
front of the calculator.
2. Remove the cover as shown in the illustration and replace
the battery, taking care that its plus (+) and minus (–) ends
are facing correctly.
3. Replace the cover.
4. Initialize the calculator: O1 9(CLR) 3(All) =(Yes)
• Do not skip the above step!

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