DEFINITION MODULE Math ; (* Title : Math Author : Gaius Mulley System : UNIX (gm2) Date : Sat Sep 18 15:23:18 1993 Last edit : Sat Sep 18 15:23:19 1993 Description: Defines some primitive math operations. *) EXPORT QUALIFIED ABS ; (* ABS - returns the absolute value of an INTEGER. *) PROCEDURE ABS (i: INTEGER) : INTEGER ; END Math.