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abs()                    Calculate Absolute Value of Integer

 #include   <stdlib.h>                   For function declarations

 int        abs(n);
 int        n;                           Integer value

    abs() returns the absolute value of the integer 'n'.

    Returns:    The absolute value of 'n'.

  -------------------------------- Example ---------------------------------

    The following statements calculate the absolute values of -15, 0 and
    33.

           #include <math.h>     /* Required for function declaration only */

           main()
           {
               int x, y, z;

               x = abs(-15);  /* x = 15 */
               y = abs(0);    /* y =  0 */
               z = abs(33);   /* z = 33 */
           }