queure

代码说明：

  针对M/PH/1(k)排队系统推导出该排队系统在任意时刻、到达时刻、退去时刻的队列长度状态概率分布、平均队列长度、以及平均等待时间，并编写程序进行数值计算，并对M/E2/1(k), M/M/1(k), M/H2/1(k)排队系统的性能进行数值比较。(against M/PH/1 (k) queuing system derived the queuing system at any time, the arrival time, faded moment of the queue length probability distribution, the average queue length, and the average waiting time, and the preparation procedures for numerical computation, and M/E2/1 (k), M/M/1 (k), M/H2/1 (k) queuing system performance numerical comparison.)