Functions and operators : SQRT( )

SQRT( )

Calculates the square root of a number.

Syntax

SQRT(num)

Argument

num

The number, or numeric expression specifying the number, for which you want to find the square root. The number must be a positive number.

Returns

A number that is the square root of num.

Example

The following example calculates the square root of each value in the LotSize data field.

SQRT([LotSize])

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

which translates to the following expression:

SQRT((([Distance] * [Distance]) + ([Elevation] * [Elevation])))