1 ABS
 The ABS function returns a floating-point number that equals the  absolute
 value  of  a  specified  numeric expression.  The ABS% function returns an
 integer that equals the absolute value of a specified integer expression.

 Example

 A = ABS(-100 * G)

 A% = ABS%(5% - B%)

2 Syntax

     real-var = ABS(real-exp)

     int-var = ABS%(int-exp)