ABS( )
Returns the absolute value of a number without regard to its sign. For example, 6 is the absolute value of 6 and -6.
Syntax
ABS(num)
Argument
num
The number, or numeric expression that specifies the number, for which you want to find the absolute value.
Returns
A number that represents the absolute value of num.
Example
The following example returns the absolute value for each number in the TemperatureCelsius data field:
ABS([TemperatureCelsius])

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