These two functions let you take the sign off a number.
nAbsoluteValue = ABS( nValue )
nSign = SIGN( nValue )ABS() returns the absolute value of the number, that is, the number without the sign. SIGN() does the reverse and returns the sign without the number—it uses 1, 0 and -1 to represent positive, zero and negative signs, respectively. ABS() and SIGN() work on all four number types: currency, double, integer and numeric.
? ABS(37) && returns 37
? ABS(-37) && returns 37
? SIGN(37) && returns 1
? SIGN(-37) && returns -1
? SIGN(0) && returns 0ABS() and SIGN() both handle null values, returning .NULL.