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User´s Guide


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.
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 key.

4. Initialize all modes and settings by performing the following operation.
fx-82MS/fx-85MS/fx-300MS/fx-350MS: (CLR)(Mode)
fx-220 PLUS: (Mode)

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