5.Enter the correct modes to perform the calculation and try again.

If the above steps do not correct the problem, press the 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.

kError Messages

The calculator is locked up while an error message is on the display. Press t to clear the error, or press eor 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.

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