Technical Information

kWhen you have a problem......

If calculation results are not what you expect or if an error occurs, perform the following steps.

1.Press A B2(Mode) <to initialize all modes and settings.

2.Check the formula you are working with to confirm it is correct.

3.Enter the correct mode and try performing the calculation again.

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.

kError Messages

The calculator is locked up while an error message is on the display. Press

tto clear the error, or press e or r to display the calculation and correct the problem. See “Error Locator” for details.

Math ERROR•Causes

•Calculation result is outside the allowable calculation range.

•An attempt to perform a function calculation using a value that exceeds the allowable input range.

•An 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.

Stack ERROR•Cause

•The capacity of the numeric stack or operator stack is exceeded.

•Action

•Simplify the calculation. The numeric stack has 10 levels and the operator stack has 24 levels.

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