迹线平面图解法在三变量线性规划中的应用

The application of plane graphic methods of trace in the linear programming of three variables

本文介绍了线性规划的基本原理和方法，用迹线平面图解法解决三变量线性规划问题，并用实例证明了迹线平面图解法在三变量线性规划中的具体应用，为线性规划拓展了新的途径。

The paper introduces the basic principles and approaches of the linear programming,and then,on the basis of which,the paper tries to solve problems of the linear programming of three variables,using plane graphic methods of the trace. The paper also illustrates the practical application of plane graphic methods of trace in the linear programming of three variables, and thus finds a new approach to the linear programming.