TAN in WPS on Windows FAQ

Last updated:July 20, 2026

This FAQ covers 3 common question types about the TAN function on Windows: input errors, syntax guidance, and unexpected results.

FAQ

What should I do if the TAN function shows an error after I enter it?

  1. Check whether the formula starts with =.
  2. Check whether the parentheses are complete and the parameter separator is correct.
  3. Confirm that the input is a valid number or a valid cell reference.
  4. If needed, type TAN( again and follow the syntax guidance to complete the formula.

How can I view the parameter guidance for the TAN function?

  1. Select the target cell.
  2. Type =TAN(.
  3. Review the syntax guidance and parameter requirements shown in the editing area.
  4. Complete the parameter entry based on the prompt.

Why is the TAN function result not correct?

  1. Confirm that the input value is in radians instead of degrees.
  2. Check whether the referenced cell contains numeric data.
  3. Check whether the formula includes an invalid reference or an error in a nested formula.
  4. Update the parameter, press Enter again, and verify the result.

Glossary

TermDefinition
TANA trigonometric spreadsheet function that returns the tangent of a given angle in radians.
RadianA unit for measuring angles. Many trigonometric functions use radians as the default input unit.
Syntax guidanceThe on-screen prompt that shows the expected formula structure and parameter format while you type a function.