We apply the minimax mixture of distributions free procedure,so that optimal order number,re-order point and lead time is attained,and as a result,the total cost of inventory is minimal.

• 采用提前期的表达方法,并考虑了机会成本,运用最大最小算法,求得最优化订货数量、再订货点和提前期,达到库存总成本最小。