CALL SEQUENCE...
       square  XIN XOUT OUTPUT [ -npg VAL1 ]
 
 
      AUTHORS - R.Laprise ET J.D.Henderson, MAY 14 1983.
      LAST REVISION: $Header: /home/cvs/RMNLIB/utils/rdiag/lspgm/square.ptn,v 4.15 2014/09/25 20:20:54 dugas Exp $
 
  
      PURPOSE - CALCULATE THE SQUARE OF ANY NUMERICAL INPUT FIELD.
  
 
      INPUT FILE... 
       XIN  = FILE OF FIELDS TO BE RAISED TO THE POWER 2 
  
      OUTPUT FILE... 
       XOUT = FILE CONTAINING THE SQUARE OF XIN 
 
 
      (OPTIONAL) COMMAND LINE PARAMETER...
       NPG  = OUTPUT PACKING DENSITY
 
 
      NOTE THAT MISSING VALUE TREATMENT IS SUPPORTED VIA EITHER
      THE "MISSING_VALUE" ENVIRONMENT VARIABLE OR THE "-mvalue"
      COMMAND-LINE ARGUMENT. PLEASE SEE THE R.DIAG WEB
      DOCUMENTAION FOR MORE DETAILS.
 
 
      EXIT CONDITIONS...
        0 NO PROBLEMS
        2 UNABLE TO READ FILE XIN