## Excel IMSEC function

The IMSEC function returns the secant of a complex number in the form x + yi or x + yj.

Note: A complex number is composed of a real coefficient and an imaginary coefficient. You can apply the COMPLEX function to convert real and imaginary coefficients to a complex number of the form x + yi or x + yj.

IMSEC(inumber)

#### Arguments

• inumber (required): The complex number for which you want the secant.

#### Remarks

1. As the IMSEC function was first introduced in Excel 2013, it is only available in Excel 2013 and later versions.
2. The argument can be supplied as any of the following:
-- A real number whose imaginary part is 0, e.g., 1 is a complex number 1+ 0i; Or a purely imaginary number whose real part is 0, e.g., i is a complex number 0 + 1i;
-- A cell reference that refers to a complex number;
-- A complex number enclosed in double quotation marks.
3. The #VALUE! error occurs if any of the supplied arguments is a logical value.
4. The #NUM! error occurs if “inumber” cannot be recognized as a complex number.

#### Return value

It returns a complex number as text.

#### Example

To calculate the secant of the complex numbers in the following table, you can do as follows.

Select a cell (say D6), enter the formula below and press the Enter key to get the secant of the first complex number. Select this result cell and then drag its AutoFill Handle down to get the rest of the results.

=IMSEC(B6)

Notes:

1) The complex number can be directly entered into the formula and needs to be enclosed in double quotation marks. So, the formula in D7 can be changed to:

=IMSEC("10+5j")

2) The IMSEC function accepts only lowercase “i” and “j”.

#### Related Functions

Excel COMPLEX function
The COMPLEX function converts real and imaginary coefficients to a complex number of the form x + yi or x + yj.

Excel IMSECH function
The IMSECH function returns the hyperbolic secant of a complex number in the form x + yi or x + yj.

Excel IMSIN function
The IMSIN function returns the sine of a complex number in the form x + yi or x + yj.

Excel IMSINH function
The IMSINH function returns the hyperbolic sine of a complex number in the form x + yi or x + yj.

Excel IMSQRT Function
The IMSQRT function returns the square root of a complex number in the form x + yi or x + yj.

Excel IMTAN function
The IMTAN function returns the tangent of a given complex number in the form x + yi or x + yj.

Excel IMSUB function
The IMSUB function returns the difference of two complex numbers in x + yi or x + yj text format.

### The Best Office Productivity Tools

#### Kutools for Excel - Helps You To Stand Out From Crowd

 🤖 Kutools AI Aide: Revolutionize data analysis based on: Intelligent Execution   |  Generate Code  |  Create Custom Formulas  |  Analyze Data and Generate Charts  |  Invoke Kutools Functions… Popular Features: Find, Highlight or Identify Duplicates  |  Delete Blank Rows  |  Combine Columns or Cells without Losing Data  |  Round without Formula ... Super VLookup: Multiple Criteria  |  Multiple Value  |  Across Multi-Sheets  |  Fuzzy Lookup... Adv. Drop-down List: Easy Drop Down List  |  Dependent Drop Down List  |  Multi-select Drop Down List... Column Manager: Add a Specific Number of Columns  |  Move Columns  |  Toggle Visibility Status of Hidden Columns  |  Compare Columns to Select Same & Different Cells ... Featured Features: Grid Focus  |  Design View  |  Big Formula Bar  |  Workbook & Sheet Manager | Resource Library (Auto Text)  |  Date Picker  |  Combine Worksheets  |  Encrypt/Decrypt Cells  |  Send Emails by List  |  Super Filter  |  Special Filter (filter bold/italic/strikethrough...) ... Top 15 Toolsets:  12 Text Tools (Add Text, Remove Characters ...)  |  50+ Chart Types (Gantt Chart ...)  |  40+ Practical Formulas (Calculate age based on birthday ...)  |  19 Insertion Tools (Insert QR Code, Insert Picture from Path ...)  |  12 Conversion Tools (Numbers to Words, Currency Conversion ...)  |  7 Merge & Split Tools (Advanced Combine Rows, Split Excel Cells ...)  |  ... and more

Kutools for Excel Boasts Over 300 Features, Ensuring That What You Need is Just A Click Away...

#### Office Tab - Enable Tabbed Reading and Editing in Microsoft Office (include Excel)

• One second to switch between dozens of open documents!
• Reduce hundreds of mouse clicks for you every day, say goodbye to mouse hand.
• Increases your productivity by 50% when viewing and editing multiple documents.
• Brings Efficient Tabs to Office (include Excel), Just Like Chrome, Edge and Firefox.
No ratings yet. Be the first to rate!
There are no comments posted here yet
Posting as Guest
Rate this post:
0   Characters
Suggested Locations