What is IMTAN function in Excel?
The IMTAN function is one of the Engineering functions of Excel.
It Returns the tangent of a complex number.
We can find this function in Engineering category of the insert function Tab.
How to use IMTAN function in excel
- Click on an empty cell (like F5).

2. Click on the fx icon (or press shift+F3).

3. In the insert function tab you will see all functions.

4. Select ENGINEERING category.
5. Select IMTAN function
6. Then select ok.

7. In the function arguments Tab you will see IMTAN function.
8. Inumber section is a complex number for which you want the tangent.
9. You will see the results in the formula result section.

Examples of IMTAN function in Excel

IMTAN related function
- Use IMSIN function to return the sine of a complex number.
- Use IMCOT function to return the cotangent of a complex number.
- Use IMCOS function to return the cosine of a complex number.