最优化问题的数学解析，主要讲解背包问题，最优化，最短路径等优化模型，一数学建模的方法去理解最优化问题，课后有matlab的练习以帮助理解-Optimization of mathematical analysis, mainly on the knapsack problem, optimization, etc. shortest path optimization model, a mathematical modeling approach to understand the optimi

机器学习课后练习，对率回归程序，判断好瓜与坏瓜，包含西瓜测试数据。(Machine learning exercises after class, to rate regression procedure, judge good melon and bad melon.include test data)