This FAQ focuses on 3 common issue types when using the LN function: input errors, usage guidance, and unexpected results.
FAQ
What should I do if the LN function shows an error?
- Check whether the formula starts with an equal sign
=. - Make sure the parentheses are paired correctly and the parameter format is valid.
- Confirm that the entered value or referenced cell contains a calculable number.
- If a syntax prompt is shown, adjust the formula and press Enter again.
How can I view guidance for the LN function?
- Type
=LN(in a cell or in the formula bar. - Watch for the automatic syntax prompt.
- Review the parameter requirement and example format shown there.
- Complete the formula and verify the result.
Why does the LN result look incorrect?
- Check whether the referenced cell contains a number instead of text-formatted numeric content.
- Confirm that the formula is not pointing to the wrong cell and does not create a circular reference.
- After source data changes, check whether the formula result has refreshed.
- If needed, edit the formula again and review each part step by step.
Glossary
| Term | Definition |
|---|---|
| LN | A natural logarithm function that returns the natural log value of a specified positive number. |
| Syntax prompt | The parameter hint and example shown while entering a function. |
| Cross-sheet reference | A way to use data from a cell on another worksheet in the current formula. |
| Nested formula | A formula structure that places one function or expression inside another. |