This FAQ covers 3 common question types about ISNUMBER in WPS, including errors, unexpected results, and batch use.
FAQ
What should I do if ISNUMBER returns #VALUE!?
- Check whether the formula has complete parentheses, separators, and references.
- Confirm that any nested formula inside the argument is not already returning an error.
- If the data contains hidden characters, clean it first with
TRIMorCLEANand test again.
Why does ISNUMBER return FALSE for something that looks like a number?
- Select the cell and check whether the value is stored as text.
- Look for spaces, quotation marks, or other extra characters before or after the number.
- Convert the text to a numeric value first, then run ISNUMBER again.
How do I use ISNUMBER across multiple cells?
- Enter
=ISNUMBER(target_cell)in the first result cell. - Press Enter, then move the pointer to the fill handle at the lower-right corner of the cell.
- Drag down or double-click the fill handle to apply the formula to a larger range.
Glossary
| Term | Definition |
|---|---|
| ISNUMBER | A logical function that checks whether a specified value is a number and returns TRUE or FALSE. |
| Parameter | The input inside a function, such as a constant, cell reference, or another formula result. |
| Cell reference | A worksheet address used in a formula, such as A1 or B2. |