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					Originally Posted by €uroMeinke  Sure this one's easy:
 DV9548us - DV9640us =
 DV(9548us-9640us) =
 DV(us(9548-9640)) =
 DV(us(-92)) =
 
 -DV92us
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 Who knew algebra (or is that calculus - I can't remember the difference) could actually be worth something in the real world?