This how-to guide includes 4 topics, all available without membership; use the index below to jump to the task you need and follow the steps to enter, check, and apply the LN function.

How-to Index

No.	Topic	Membership Requirement
1	1. Enter the LN function for a basic calculation	Free
2	2. Fill in parameters with syntax prompts	Free
3	3. Use cross-sheet references in an LN formula	Free
4	4. Nest LN with other functions	Free

How-to Guide

1. Enter the LN function for a basic calculation

Entry point: Formulas tab → formula bar

Open WPS Spreadsheet and select the cell where you want the result to appear.
Type an equal sign = in the formula bar or directly in the cell.
Type LN( to begin the function.
Enter a positive number or a cell reference, then close the parenthesis.
Press Enter to return the result in the selected cell.

Success Criteria

On-screen result: The selected cell shows the LN calculation result.
Next action available: You can continue editing, copy the formula, or fill it down.

Tips While Using

Common mistake: If the formula does not start with =, it is treated as plain text.
Environment note: LN is typically used with values greater than 0, and invalid input may return an error.

2. Fill in parameters with syntax prompts

Entry point: Formulas tab → formula bar

Select the target cell and type =LN(.
Check the syntax prompt that appears while you type.
Enter the parameter according to the prompt.
Press Enter to complete the calculation.

Success Criteria

On-screen result: A syntax prompt appears while the function is being entered.
Next action available: You can revise the parameter and confirm the result again.

Tips While Using

Common mistake: An unclosed parenthesis or an invalid parameter format can cause a formula error.

3. Use cross-sheet references in an LN formula

Entry point: Formulas tab → formula bar

Select the result cell and type =LN(.
Switch to the sheet that contains the source value.
Click the cell you want to reference so the address is inserted into the formula.
Close the parenthesis and press Enter.

Success Criteria

On-screen result: The formula includes a reference to another worksheet.
Next action available: You can change the source value and check whether the result updates.

Tips While Using

Common mistake: Referencing a blank cell or a non-numeric cell may produce an unexpected result.

4. Nest LN with other functions

Entry point: Formulas tab → formula bar

Select the target cell.
Start a combined formula with =LN(.
Add another function or reference expression inside the LN argument.
Check that the parentheses are complete.
Press Enter to confirm the formula and review the result.

Success Criteria

On-screen result: The cell returns the result of the nested formula.
Next action available: You can continue adjusting either the inner or outer function.

Tips While Using

Common mistake: Deeply nested formulas can fail when parentheses do not match.
Environment note: For longer formulas, editing in the formula bar makes the structure easier to review.