【摘要】 超几何分布的概率计算在抽样方案设计中是计算接收概率的基础,十分重要,常用的算法有阶乘对数法和递推算法.为评价超几何分布概率函数近似算法的实际精度,给出概率的精确数值,提出了超几何分布概率任意精度算法的解决方案.该方案首先采用质因数分解算法将概率函数分解成最简质因数分式,其次设计任意精度算法类,然后通过Visual C++实现,并给出了应用实例.更多还原

【Abstract】 The probability calculating of hypergeometric distribution is basal and important for calculating acceptance probability in the design of sampling plan.And there are two kinds of general algorithm for this probability calculating: factorial-logarithmic algorithm and recursion algorithm.For appraising the actual precision of approximate algorithm for hypergeometric distribution and giving accurate number of probability,we put forward the solution of arbitrary precision algorithm for hypergeometric probability density function.First,we factorize probability function into an irreducible prime number fraction applying prime number factorization.Second,we design arbitrary precision algorithm and implement it using Visual C++.Then an example is given.更多还原