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Message: [QUOTE="=?ISO-8859-1?Q?Arne_Vajh=F8j?=, post: 2838141"] All real numbers can not be represented exact in a fixed number of bits because there are an infinite number of them. Floating point are based on 1/2 1/4 1/8 and not on 1/10 1/100 1/1000, which mean that numbers that are exact representable in a small number of decimals are not necessarily exact representable in a computer floating point. So just because some math works in decimals does not mean that the same math works in computer floating points. When you use float and double types you should expect this type of noise. If you can not live with that chose another data type (BigDecimal would be obvious). Arne [/QUOTE]