I suppose there is some small thing I am missing in the maze of computers representing floating point numbers, I just can't figure out what it is. 
perl -e '$x = 0.0; $x += 20.1 for ( 1 .. 43 ); print $x."\n";'

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The code above gives me 864.300000000001 as result on perl v5.14.2.
What is it I'm missing ?

In reply to floating point addition by kresike

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