How to Use the ACOS Function in WPS on Windows

Last updated:July 20, 2026

Use ACOS with 1 how-to topic, including entering the function and completing the calculation; choose the topic from the How-to Index and follow the entry point and steps.

How-to Index

#TopicMembership
11. Use the ACOS FunctionFree

How-to Guide

1. Use the ACOS Function

Entry point: WPS Sheets Formulas tab → formula bar

  1. Open WPS Sheets and select the cell where you want to show the result.
  2. Type = in the formula bar or directly in the cell.
  3. Enter ACOS( and review the syntax guidance and parameter details.
  4. Enter the correct parameter, close the parenthesis, and press Enter.
  5. Check the inverse cosine result returned in the cell.

Success Criteria

  • UI state: The target cell shows a calculation result.
  • Next actions: You can copy the formula, change the parameter, or fill it into other cells.

Tips While Using

  • Common mistakes: If the parameter format is incorrect or the parenthesis is not closed, the formula may return an error.
  • Environment limits: If you reference data from another worksheet, make sure the referenced cell contains a calculable numeric value.