Perl automatically converts text to number and back again. It does not make a distinction between integers and floats.

#!/usr/bin/env perl

use strict;
use warnings;

use Scalar::Util qw( looks_like_number );
while( <DATA> ){
  my @numbers = map { $_ + 0 } grep { looks_like_number $_ } split;
  print "@numbers\n";
}
__DATA__
360.000 -0.000100033 -1.76122e-05 -9.89111e-05 -1.9003e-05
640.000 -4.54467e-05 9.13758e-05 -4.50576e-05 9.04804e-05
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