IMTAN in WPS on Windows FAQ

Last updated:July 17, 2026

When using IMTAN, the most common questions focus on input format, syntax prompts, unexpected results, and cross-sheet references, with 4 high-frequency answers below.

FAQ

What should I do if IMTAN returns an error after I enter it?

  1. Check whether the formula starts with =.
  2. Make sure the parentheses are paired correctly and separators are used correctly.
  3. Confirm that the input matches the expected complex-number format.
  4. Press Enter again after correcting the formula.

How can I view the IMTAN function description?

  1. Type =IMTAN( in a cell or in the formula bar.
  2. Review the syntax prompt shown in the interface.
  3. Follow the prompt to check the argument format and example pattern.

Why does the IMTAN result look incorrect?

  1. Check whether the referenced cell contains a recognizable complex-number value.
  2. Make sure plain text is not being used as a formula argument by mistake.
  3. If the formula is complex, split it into smaller parts and test them one by one.
  4. Update the source data and confirm whether the result recalculates automatically.

Why does a cross-sheet reference not return the expected result?

  1. Check whether the worksheet name and cell reference are correct.
  2. Confirm that the referenced cell contains a value suitable for IMTAN calculation.
  3. Edit the formula again, complete the parentheses, and confirm the entry.

Glossary

TermDefinition
IMTANAn engineering function that returns the tangent of a given complex number.
Complex numberA numeric form made of a real part and an imaginary part, often written as x+yi.
Cross-sheet referenceA way to use cell data from another worksheet in the current formula.
Syntax promptThe parameter and format hint shown while you type a function.