# Functions
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DivisionN 非4舍5入,保留2位数的除法,division.
Float2Float float精度.
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Float64Round 对float进行四舍五入.
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Probability 获得一个概率索引.
ProbabilityElems 概率元素.
RandIntn 获取一个 0-maxInt 之间的随机整数, 不包含maxInt.
RangeRandFloat64 获取给定两个值的中间的随机数.