Home »
ExcelBuiltInFunctions »
ExcelEngineeringFunctions »
ExcelImconjugateFunction
The Excel IMCONJUGATE Function
Basic Description
The Excel IMCONJUGATE function returns the
complex conjugate
of a supplied complex number.
The syntax of the function is :
IMCONJUGATE( inumber )
where the inumber argument is a complex number.
Excel Imconjugate Function Examples
The spreadsheet below shows examples of the Excel Imconjugate function, used find the complex conjugate
of several complex numbers.
The spreadsheet on the left shows the formulas and the spreadsheet on the right shows the results.
Formulas:

A 
1 
=IMARGUMENT( "5+2i" ) 
2 
=IMARGUMENT( "2i" ) 
3 
=IMARGUMENT( 6 ) 
4 
=IMARGUMENT( "3i" ) 
5 
=IMARGUMENT( "4+i" ) 

Results:

A 
1 
52i 
2 
2+i 
3 
6 
4 
3i 
5 
4i 

Further information on the Excel Imconjugate function can be found on the
Microsoft Office website.
Imconjugate Function Errors
If you get an error from the Excel Imconjugate Function, this is likely to be one of the following:
Common Errors
#NUM!



Occurs if the supplied inumber argument is not recognised as a complex number

#NAME?



Occurs when Analysis ToolPak addin is not enabled in your Excel.
You will need to enable the addin if you want to use the Excel complex number functions.
+ Show How to Do This in Excel 2003:
 From the Tools dropdown menu, select the option AddIns ...
 An 'AddIns' window will pop up. From this, select the option Analysis ToolPak and click OK
+ Show How to Do This in Excel 2007:
 Click the Microsoft button on the top left of your spreadsheet and select
the Excel Options button
 From the menu on the left hand side, select AddIns
 In the 'Manage:' box, select Excel Addins and click Go...
 An 'AddIns' window will pop up. From this, select the option Analysis ToolPak and click OK
+ Show How to Do This in Excel 2010 or Excel 2013:
 Click the File tab (top left of your spreadsheet) and select Options
 From the menu on the left hand side, select AddIns
 If the window that pops up doesn't show the 'Addins' list, use the 'Manage:'
dropdown menu (at the bottom of the window) to select Excel Addins. Click Go...
 From the 'AddIns' window, select the option Analysis ToolPak and click OK
