When using the LOG function, the most common questions fall into 3 areas: input errors, unexpected results, and batch application across cells.
FAQ
What should I do if the LOG function returns an error value?
- Check whether the input values are numbers instead of text or values with extra spaces.
- Confirm that the
numberargument meets the positive-number requirement. - If needed, clean the source data and then enter or calculate the formula again.
Why does the LOG result look different from what I expected?
- Check whether the referenced cells or ranges in the formula are correct.
- Confirm that the base argument is correct and has not been omitted by mistake.
- Review the calculation step by step with formula-checking tools if needed.
How can I use the LOG function in multiple cells at once?
- Enter and confirm the LOG formula in the first target cell.
- Select that cell, then drag the fill handle across the target range, or copy and paste the formula.
- After filling, check whether relative and absolute references behave as expected.
Glossary
| Term | Definition |
|---|---|
| LOG | A spreadsheet function that returns the logarithm of a number to a specified base. |
| number | The required argument in the LOG function that represents the value to calculate. |
| base | The optional argument in the LOG function that represents the logarithm base. |