MMULT in WPS on Windows FAQ

Last updated:July 17, 2026

When using MMULT, the most common questions involve formula errors, syntax guidance, and result checking; this FAQ includes 3 common questions and a glossary.

FAQ

What should I do if MMULT shows an error after I enter it?

  1. Check whether the formula starts with =.
  2. Check whether the parentheses, separators, and function name are correct.
  3. Confirm that the two arguments have matching dimensions, meaning the number of columns in the first matrix equals the number of rows in the second matrix.
  4. Check whether the referenced ranges contain blank cells, text, or other non-numeric content.

How can I view the MMULT function guidance?

  1. Select any editable cell.
  2. Type =MMULT(.
  3. Review the syntax prompt that appears automatically.
  4. Confirm the argument requirements and input format, then continue editing the formula.

Why is the MMULT result incorrect?

  1. Check whether numbers in the referenced ranges are stored as text.
  2. Check whether the formula points to the wrong worksheet or cell range.
  3. Check whether the formula contains a nested logic issue or a circular reference.
  4. After changing data, review whether the result updates automatically and recalculate if needed.

Glossary

TermDefinition
MMULTA spreadsheet function that returns the matrix product of two arrays or matrices.
Matrix dimensionsThe number of rows and columns in a matrix. For MMULT, the first matrix columns must equal the second matrix rows.
Cross-sheet referenceA formula reference that points to a cell or range in another worksheet.
Automatic recalculationA calculation behavior in which formula results update when source data changes.