FAQ

Last updated:July 8, 2026

When using ACOSH, the most common questions usually fall into 3 areas: parameter errors, result checking, and batch use across cells.

FAQ

What should I do if ACOSH returns an error?

  1. Check whether the parameter is a valid numeric value and does not include extra spaces or text.
  2. Confirm that the formula uses English punctuation.
  3. Clean the source data if needed, and then enter the formula again.

Why does the ACOSH result look different from what I expected?

  1. Check whether the referenced cell is correct.
  2. Confirm that the cell content is stored as a number instead of text.
  3. Review the syntax ACOSH(number) and verify the entered parameter.

How can I use ACOSH in multiple cells at once?

  1. Enter the ACOSH formula in the first target cell.
  2. Select that cell and move the pointer to the fill handle in the lower-right corner.
  3. Drag down or across to copy the formula to other cells.

Glossary

TermDefinition
ACOSHA spreadsheet function that returns the inverse hyperbolic cosine of a number.
Function argumentThe input value inside the function parentheses. For ACOSH, the argument is number.
Formula barThe input area above the worksheet where you can view and edit formulas directly.