Common questions about ISERROR in WPS on Windows usually focus on formula errors, result interpretation, and batch use; this section includes 4 FAQs.
FAQ
What should I do if ISERROR still shows an error after I enter it?
- Make sure the formula starts with an equal sign
=. - Check that the parentheses are matched and the argument is complete.
- Confirm that the expression being tested is written correctly.
- If needed, insert the function again from the Insert Function dialog box.
Why does ISERROR return FALSE?
- FALSE means the tested content is not currently returning an error value.
- Check whether the referenced cell or formula result is already normal.
- If you want to test the behavior, try an expression that produces an error.
How do I use ISERROR in multiple cells?
- Enter the full ISERROR formula in one cell first.
- Confirm that the result is correct.
- Drag the fill handle across the target range, or copy and paste the formula.
- Check whether relative and absolute references behave as expected.
What is the difference between using Insert Function and typing the formula directly?
- Both methods can enter ISERROR.
- Insert Function is more suitable when you are not familiar with the function name or arguments.
- Direct typing is more suitable when you already know the formula syntax and want faster entry.
Glossary
| Term | Definition |
|---|---|
| ISERROR | A logical function that checks whether an expression returns an error value and returns TRUE or FALSE. |
| Error value | An abnormal formula result caused by issues such as references, arguments, or calculations. |
| Function argument | The content inside a function’s parentheses that tells the function what to test or calculate. |
| Formula bar | The input area above the worksheet where you can enter or edit formulas directly. |