几道简单的数学建模（体重变化 水的流出时间 简单线性规划 简单随机库存 水道测量 层次分析法）是当初的建模作业 有分析 也有matlab和mathematica程序-A few simple mathematical modeling (body weight change in the water outflow time of a simple linear programming simple random inventory hydrographic AHP) is the original analytical modeling operations have matlab and mathematica program