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				DI

     Divide is a module that divides one map by another as in flat 
 fielding, but with looping through a set of input and output maps.  The
 map number of the divisor file is fixed.  To divide each map in one file
 by a different map in another, see the DO example at the end of this
 documentation.

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 Enter an option:                              11-SEP-2000 18:03:42.21
 OPTION=DI
 DIVIDE, Version 5
 Open the input file
 Enter the filename:  (<CR> for default)
 FILE_IN=DTEST
 There are  11 maps in the file       
 Reading from the file
   69 rows of 2040 pixels in R4 format
 Open the output file:
 Enter the filename:  (<CR> for default)
 FILE_OUT=D2TEST
 Writing to an existing file
 There are  11 maps in the file       
    69 rows of 2040 pixels in R4 format
 Open the denominator file:
 Enter the filename:  (<CR> for default)
 FILE_DIVISOR=DDTEST
 There are   11 maps in the file
 Reading from the file
    69 rows of 2040 pixels in R4 format
 Enter the input map numbers:  (default = all)
 MAPS_IN=1
 Enter the ouput map numbers:  (default = the input map numbers)
 MAPS_OUT=1
 Enter the map number of the divisor file:  (default = 1)
 MAP_DIVISOR=
          1
 Enter the bias to subtract from the input maps:  (defaults = 0)
 BIAS=
  0.000000E+00
 Enter the factor to scale the result:  (default = 1.0)
 SCALE=
   1.00000
 Enter an option:                              11-SEP-2000 18:03:42.21
 OPTION=
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		Now we use DO to do the operation in another way


 OPTION=DO($=2:11).DI(MAPS_IN=$,MAPS_OUT=$,MAP_DIVISOR=$)
 OPTION DO
 $=2:11
 &=
 DO LOOP: $=  2.00       &=  2.00    
 OPTION .DI
 DIVIDE, Version 5
 Open the input file
 FILE_IN=DTEST
 There are  11 maps in the file       
 Reading from the file
   69 rows of 2040 pixels in R4 format
 Open the output file:
 FILE_OUT=D2TEST
 Writing to an existing file
 There are  11 maps in the file       
    69 rows of 2040 pixels in R4 format
 Open the denominator file:
 FILE_DIVISOR=DDTEST
 There are  11 maps in the file       
 Reading from the file
   69 rows of 2040 pixels in R4 format
 MAPS_IN=$
 MAPS_OUT=$
 MAP_DIVISOR=$
 BIAS=0.0
 SCALE=1.0
 OPTION DO

		______________________	   etc., etc. for 9 more maps

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