The ABS function returns the absolute value of the argument. 
 
   
	 The type of this function is according to the argument type as follows: 
	 
 
	  
	 
 
		   
		   
		   
			  
				| Argument Type | Function Type | 
 
		  
 
		   
			  
				| Integer | Integer | 
 
			  
				| Numeric | Numeric | 
 
		  
 
		
 
 
   
 
  General Format
 
	  
	  
 
  Arguments
 
	   
	 - Argument-1 must be class numeric. 
	 
Returned Values
 
	   
	 - The returned value is as follows: 
		 
		  - When the value of argument-1 is zero or positive, (argument-1) 
		  
- When the value of argument-1 is negative, (-argument-1)