java - Why and how does ROUND_HALF_EVEN minimize cumulative error when applied repeatedly over a sequence of calculations? -


I'm told that ROUND_HALF_EVEN is a favored rounded mode for financial data calculation. I am curious to know how and how this round mode will reduce the cumulative error as stated in javadoc BigDecimal 1.4.2. Thanks, Dean

From:

Number 4.5 to 5, In fact, 4.5 is not 4 compared to more than 5 (it is 0.5 away from both). When scientists or statistical data behave with large sets, where trends are important, then traditional circular data on the average partiality comes up slightly above the top. On a large set of data, or when many lateral circular operations are performed as digital signal processing, the goal-to-to-lot reduces the total circular error, along with (on the average) round form In a similar part of the integer below. This generally reduces the result above.


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