ok, -w and use warnings don't make sense.
Yes, you are correct with the equal - output and the numbers.
change 
 
my @file = ('0.13','0.14','0.14');
my $diff = 0;

[download]
to 
 
my @file = (0.14,0.14);
my $diff = -1;

[download]
and here you got your output
Difference between 0.14 and 0.14 is 0

[download]

In reply to Re: Re: Comparing numbers by Chief of Chaos
in thread Comparing numbers by Anonymous Monk

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