Say there are two integers of scalar. I want to substract them by digits.

like this: 1,2,3,4,5,6 - 2,9,8,4,7,6 = -1,-7,-5,0,-2,0

When I tried it, I split the two scalars in to 2 arrays of single digits, then performed digit substract. However the results are float numbers.

Appreciate any good suggestions.

Update ###################################

open(FILEIN, "table.txt"); #numbers table which only has 0 and 1.
open FILEOUT, ">>data.txt";          
 #opens data.txt in read-mode
my $input="01110011001111100010111101011111000100110000000000000001111
+111101101111101011010";
my @seed = split //;
while(<FILEIN>){                   #reads line by line from FILE which
+ is the filehandle for data.txt
   #chomp;
   my $temp='';
   my @ca = split //;
   #$_ =~ tr/ /\n/;
   my $count = 0;
   foreach my $digit (@ca){
       
           @seed[$count] = @seed[$count] - $_;
      
       $count++;
   }

   print FILEOUT "@seed\n";  #shows you what we have read
}
close FILEIN;
close FILEOUT;

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In reply to Subtraction by digit by zli034

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