If you know that you want a specific precision, such as 5 decimal places, try something like this: 
use strict;
use warnings;

my $n1 = 35.152000;
my $n2 = 35.152001;

if (abs($n1 - $n2) < 0.000_009) {
    print 'equal'
}
else {
    print 'not equal'
}

__END__

equal

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In reply to Re: A small question on file comparison by toolic
in thread A small question on file comparison by pavanvidem

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