The symmetric difference decomposition method gives an algorithm for the former problem (§4), which is equivalent to the revised simplex algorithm for linear programming.
用对称差分解法自然得到一个算法（§4），相当于改进单纯形算法。
In 1947, George Dantzig developed an efficient method, the simplex algorithm, for solving linear programming problems.
在1947年，George Dantzig开发了一种效率方法——simplex算法——来解决线性编程的问题。
Methods of building linear programming mathematical model for feed compounding and main procedure of realizing improveds simplex algorithm with computer are presented in this paper.
本文首先阐述了如何建立饲料配方的线性规划数学模型，以及用计算机实现改进单纯形算法的主要步骤。
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