The Excel IMDIV Function

Related Function:

Dividing Complex Numbers

When dividing complex numbers a+bi by complex number c+di, the formula used is as follows:

Formula for dividing two complex numbers

Further information on Complex Numbers can be found on the Wikipedia Complex Numbers Page.

Basic Description

The Excel IMDIV function calculates the quotient of two complex numbers (ie. divides one complex number by another).

The format of the function is :

IMDIV( inumber1, inumber2 )

where the inumber arguments are both Complex Numbers, and you want to divide inumber1 by inumber2.

Note that complex numbers are simply stored as text in Excel. When a text string in the format "a+bi" or "a+bj" is supplied to one of Excel's built-in complex number functions, this is interpreted as a complex number.

Also the complex number functions can accept a simple numeric value, as this is equivalent to a complex number whose imaginary coefficient is equal to 0.

Therefore, the inumber arguments can be supplied to the Excel Imdiv function as either:

- A simple number
- A complex number encased in quotation marks - eg. "5+3i"
- A reference to a cell containing a complex number or a numeric value
- A value returned from another Excel function or formula

These are all included in the examples below.

Excel Imdiv Function Examples

In the example below, the Excel Imdiv function is used find the difference between different pairs of complex numbers.

The format of the functions is shown in the spreadsheet on the left and the results are shown in the spreadsheet on the right.

  A B
1 5+2i =IMDIV( A1, A2 )
2 1+i =IMDIV( "2+2i", "2+i" )
3   =IMDIV( "9+3i", 6 )
4   =IMDIV( COMPLEX( 5, 2 ), COMPLEX( 0, 1 ) )
  A B
1 5+2i 3-2i
2 1+i 1.2+0.4i
3   1.5+0.5i
4   2-5i

Further information on the Excel Imdiv function can be found on the Microsoft Office website.

Imdiv Function Common Errors

If you get an error from your Excel Imdiv 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 add-in is not enabled in your Excel.
You will need to enable the add-in if you want to use the Excel complex number functions.

  +   Show How to Do This in Excel 2003:

  +   Show How to Do This in Excel 2007:

  +   Show How to Do This in Excel 2010 or Excel 2013:

Return to the Excel Engineering Functions Page

Return to the List of All Built-In Excel Functions

Valid XHTML 1.0 Transitional Valid CSS!
Disclaimer   Privacy Policy
Copyright © 2008-2015