Casio fx-85WA - Manual (Page 28)

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< fx-85W/ fx-85WA / fx-300W >
If the above steps do not correct the problem, press the
5
key. The calculator performs a self-check operation and
deletes all data stored in memory if any abnormality is
detected. Make sure you always keep written copies of all
important data.
k Error Messages
The calculator is locked up while an error message is on
the display. Press
t to clear the error, or press e or r
to display the calculation and correct the problem. See
“Error Locator” on page 9 for details.
Ma ERROR
• Cause
• Calculation result is outside the allowable calculation
range.
• Attempt to perform a function calculation using a value
that exceeds the allowable input range.
• Attempt to perform an illogical operation (division by
zero, etc.).
• Action
• Check your input values and make sure they are all
within the allowable ranges. Pay special attention to
values in any memory areas you are using.
Stk ERROR
• Cause
• Capacity of the numeric stack or operator stack is ex-
ceeded.
• Action
• Simplify the calculation. The numeric stack has 10
levels and the operator stack has 24 levels.
• Divide your calculation into two or more separate parts.
Syn ERROR
• Cause
• Attempt to perform an illegal mathematical operation.
• Action
• Press
e
or
r
to display the calculation with the
cursor located at the location of the error. Make nec-
essary corrections.