The true Meaning of Math.Round () in C #

I stepped on a hole today.
Math.Round () function rounding found wrong, 3/2 = 2, 5/2 = 2
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Math.Round () in C # is not a "rounding" method used. In fact, in VB, VBScript, C #, J #, T-SQL round functions are used banker ' s rounding (banker algorithm), namely: four six into the five to take the pair. In fact, this is also an IEEE specification, so all IEEE compliant languages should adopt such an algorithm.

Starting with. NET 2.0, the Math.Round method provides an enumeration option Midpointrounding.awayfromzero can be used to implement "rounding" in the traditional sense. namely: Math.Round (4.5, Midpointrounding.awayfromzero) = 5.

The true Meaning of Math.Round () in C #