Purpose
 
 Absolute value
 
  Synopsis
 
 ABS(value)
 
  Argument
 
 
  
   | 
     value 
     | 
     One of the following: a constant; a variable; a formula evaluating to a single value
     | 
 
  Further information
 
 ABS is not always differentiable and so alternative modeling approaches should be used where possible.