SQRT
Returns the square root of a value.
    Syntax
SQRT(Value)
Value is a number or a formula that
        returns a number. If Value is negative, the result is
        undefined.
Example
This example returns 3:
SQRT(9)
SQRT(Value)
Value is a number or a formula that
        returns a number. If Value is negative, the result is
        undefined.
This example returns 3:
SQRT(9)