线性规划作为实验教材的新增内容之一, 是直线方程的简单应用,是新大纲重视知识应用的体现,应该引起足够重视.线性规划问题就是求线性目标函数在线性约束条件下的最大值或最小值问题,而弄清楚目标函数的几何意义, 是求其最值中很关键的一步.目标函数的几何意义主要有以下三种. As one of the new contents of experimental teaching materials, linear programming is a simple application of the linear equations. It is a manifestation of the importance of the application of the new outline to knowledge, and should be given enough attention. The problem of linear programming is to find the maximum value of the linear objective function under linear constraints or The minimum value problem, and the clear understanding of the geometric meaning of the objective function, is a crucial step in finding the best value. There are mainly three kinds of geometric meanings of the objective function.