How to Use

Last updated:July 8, 2026

Use ACOSH through 3 how-to topics, including inserting it from the Insert Function dialog box, typing the formula directly in a cell, and reviewing syntax and parameter details before use.

How-to Index

How-to Guide

1. Insert ACOSH from the Insert Function dialog box

Entry: Formula tab → Insert Function

  1. Select the cell where you want to enter the formula.
  2. Click the fx button in the formula bar, or click Insert Function on the Formula tab.
  3. Search for ACOSH in the Insert Function dialog box.
  4. Select the function and click OK.
  5. Enter the required parameter in the Function Arguments dialog box.
  6. Click OK to finish inserting the function.

Success Criteria

  • Interface result: The target cell contains an ACOSH formula.
  • What you can do next: You can edit the parameter or copy the formula to other cells.

Tips While Using

  • Common mistake: Search with the English function name ACOSH.
  • Environment note: The spreadsheet editing interface must be open before you can access the function entry.

2. Type the ACOSH formula directly in a cell

Entry: Cell → Formula bar

  1. Select the cell where you want to enter the formula.
  2. Type =ACOSH(...) directly in the cell or in the formula bar.
  3. Press Enter to confirm.
  4. If you want to review the parameter prompt, type =ACOSH( and then press F1.

Success Criteria

  • Interface result: The cell shows the calculation result, and the formula bar keeps the full formula.
  • What you can do next: You can fill down or copy the formula.

Tips While Using

  • Common mistake: Use English punctuation in the formula.
  • Common mistake: If the parameter is not a valid number, the result may not return as expected.

3. Review ACOSH syntax and parameter details

Entry: Formula tab → Insert Function

  1. Click Insert Function on the Formula tab.
  2. Enter ACOSH in the search box.
  3. Select the function to review the syntax ACOSH(number).
  4. Click the help link for the function to view more details.

Success Criteria

  • Interface result: You can see the function name, syntax, and parameter description.
  • What you can do next: You can continue inserting the function or revise an existing formula.

Tips While Using

  • Common mistake: After reviewing the help details, return to the worksheet to complete the actual formula entry.
  • Environment note: Online help content may require an internet connection.