The Excel IMSQRT Function

Related Function:
IMPOWER Function

Function Description

The Excel Imsqrt function returns the square root of a supplied complex number.

The syntax of the function is:

IMSQRT( inumber )

Where the inumber argument is the complex number that you want the square root of.

Excel Imsqrt Function Examples

In the spreadsheets below, the Excel Imsqrt function is used to calculate the square root of five different complex numbers.

Formulas:
A
1=IMSQRT( "i" )
2=IMSQRT( "2-i" )
3=IMSQRT( "5+2i" )
4=IMSQRT( 6 )
5=IMSQRT( "-2-4i" )
Results:
A
10.707106781186548+0.707106781186547i
21.45534669022535-0.343560749722512i
32.27872385417085+0.438842116902255i
42.44948974278318
51.11178594050284-1.79890743994787i

Note that, in the above example spreadsheet, the integer 6, used in cell B4, is equal to the complex number 6+0i.

More details and examples of the Excel Imsqrt function are provided on the Microsoft Office website.

Imsqrt Function Errors

If you get an error from the Excel Imsqrt 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. #VALUE! - Occurs if the supplied inumber argument is a logical value.