Hi gurus. I'm using OLE with ActiveState perl5.003 (it's not my choosing) to read from an Excel spreadsheet. In particular, I read two largely negative float values (ie -3809482.42154223) and I am subtracting them. 
#x & y are both -3809482.42154223
my $diff = abs( $x - $y );

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to my shock & dismay, $diff ended up with the value '-4.65661287307739e-010'. I ran the same code in a test perl script to maintain my level of sanity. 
my $x='-3809482.42154223';
my $y='-3809482.42154223';

my $diff = abs( $x - $y );
print $diff, "\n";

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and lo and behold, $diff ended up to be zero. What is going on? Any clues? thanks, Michael

In reply to weird excel problem by Anonymous Monk

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