Re^3: strange rounding

Try this:

print int(0.500000000000001+($u*$p*100))/100;
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Re^4: strange rounding by Anonymous Monk on Nov 30, 2004 at 09:28 UTC
Nope, that doesn't give correct results! The problem is NOT within int(..) (I tried 0.501..) the result of int is correct 12400, but if you devide this (try only10!) you will get 123.99: `$cent = int(0.5 + ($u$p100); # => 12400, ok #but $dollar = $cent / 100; # => 123.99 # even if you use sprintf (which itself does # NOT round financially, you have to it yourself! $dollar = sprintf ".2f", $cent/100; # => 123.99 Dollar` [download] Hmm Carl	[reply] [d/l]

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Re^4: strange rounding
by Anonymous Monk on Nov 30, 2004 at 09:28 UTC

that doesn't give correct results!

The problem is NOT within int(..) (I tried 0.501..)
the result of int is correct 12400, but if you devide this
(try only10!) you will get 123.99:

  $cent = int(0.5 + ($u*$p*100); # => 12400, ok
#but
  $dollar = $cent / 100; # => 123.99
# even if you use sprintf (which itself does 
#  NOT round financially, you have to it yourself!
  $dollar = sprintf ".2f", $cent/100; # => 123.99 Dollar
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Carl

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