How to Use the FACTDOUBLE Function in WPS on Windows

Last updated:July 20, 2026

Use FACTDOUBLE through 4 how-to topics, including entering the function, checking syntax guidance, calculating with cell references, and reviewing unexpected results.

How-to Index

No.TopicMembership
11. Enter the FACTDOUBLE functionFree
22. Check function syntax guidanceFree
33. Calculate with a cell referenceFree
44. Review errors or unexpected resultsFree

How-to Guide

1. Enter the FACTDOUBLE function

Entry point: Open a worksheet in WPS Spreadsheet and type the formula in a target cell or in the formula bar.

  1. Open WPS Office and go to your spreadsheet file.
  2. Select the cell where you want to show the result.
  3. Type = to start a formula.
  4. Type FACTDOUBLE( and then enter the number argument.
  5. Type the closing parenthesis and press Enter.

Success Criteria

  • Interface result: The selected cell shows a double-factorial result.
  • Next action available: You can copy the formula, edit the argument, or fill the formula down.

Tips While Using

  • Common mistake: If you do not start with =, the content is treated as plain text.
  • Environment note: Enter the formula in an editable worksheet cell.

2. Check function syntax guidance

Entry point: Type the function name in a worksheet cell or in the formula bar.

  1. Select an empty cell.
  2. Type =FACTDOUBLE(.
  3. Watch for the syntax guidance shown in the editing area.
  4. Complete the argument based on the guidance and finish the formula.

Success Criteria

  • Interface result: Parameter guidance appears after the function name is entered.
  • Next action available: You can continue entering the argument and complete the calculation.

Tips While Using

  • Common mistake: If the function name is misspelled, the expected guidance may not appear.

3. Calculate with a cell reference

Entry point: Enter a FACTDOUBLE formula that uses a referenced cell.

  1. Prepare a cell that contains a number, such as A2.
  2. Select the result cell.
  3. Type =FACTDOUBLE(A2).
  4. Press Enter to view the result.
  5. Drag the fill handle if you want to apply the formula to more rows.

Success Criteria

  • Interface result: The result cell returns the double factorial for the referenced value.
  • Next action available: If the referenced cell changes, the result updates automatically.

Tips While Using

  • Common mistake: If the referenced cell contains text instead of a valid number, the result may not calculate as expected.

4. Review errors or unexpected results

Entry point: Inspect the formula and argument in the cell that shows an unexpected result.

  1. Select the cell that shows the unexpected result.
  2. Check whether the formula starts with =FACTDOUBLE( and has a complete closing parenthesis.
  3. Confirm that the argument is a valid number or a valid cell reference.
  4. If the formula uses a reference, make sure the referenced cell does not contain invalid text.
  5. Edit the formula if needed and press Enter again.

Success Criteria

  • Interface result: The error disappears or the cell returns a valid number.
  • Next action available: You can continue editing, copying, or reusing the formula.

Tips While Using

  • Common mistake: Incomplete parentheses, incorrect argument placement, or invalid referenced content can affect the result.