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Excel SQRT Function

Excel SQRT function
Summary 

The Excel SQRT function returns the square root of a positive number. SQRT returns an error if number is negative.

Purpose 
Find the positive square root of a number
Return value 
Positive square root
Syntax 
=SQRT (number)
Arguments 
  • number - The number to get the square root of.
Usage notes 

The SQRT function will return a #NUM error when asked to take the square root of a negative number. If you need to get the square root of a negative value (as if the value was positive) you can wrap the number in the ABS function like this:

=SQRT(ABS(A1))
Related functions 
Excel POWER function
Excel POWER Function

The Excel POWER function returns a number to a given power. The POWER function works like an exponent in a standard math equation.

Good links 
Microsoft SQRT function documentation

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