SQRT( )
Calculates the square root of a number.
The number, or numeric expression specifying the number, for which you want to find the square root. The number must be a positive number.
A number that is the square root of num.
The following example calculates the square root of each value in the LotSize data field.
The following example uses SQRT( ) to calculate the actual distance travelled uphill, given the base distance and elevation values. This example applies the Pythagoras theorem, which states that
. Using this theorem, the actual distance travelled is c, which means we want to calculate