Can anyone explain this?
what am I doing wrong?
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2[Double precision numbers](http://en.wikipedia.org/wiki/Double-precision_floating-point_format) – J. Holmes Feb 03 '12 at 03:20
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2NAFPQ: not another floating point question! – Mitch Wheat Feb 03 '12 at 03:33
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Round is doing the correct thing. 0.285 cannot be exactly represented as a binary floating point value. As you see, when multiplied by 100 it approximates to 28.4999999... which is less than 28.5, so the value is rounded down.
Devon_C_Miller
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Math.Round(x:Number) rounds x to the nearest integer value. In your case 28 is the nearest integer value for 28.499999999999996. So here the behavior is correct. What is weird is that 0.285 * 100 is not 28.5, but that is a consequence of the precision of the Number class in as3. Here is a little more information about this and a possible solution:
Also you can see this SO question:
Very strange number operation issue
Hope this helps.
