第三章 单纯形法 3.1 单纯形法原理 求解线性规划的单纯形方法（Simplex Method）是美国GDDantzig在1947年提出来的。是一种有效的实用算法。
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文章以单纯形方法为基础求解建筑钢筋配料问题。
This paper provides an algorithm based on simplex method for construction steel bar matching.
运用单纯形方法的一个问题是解为小数值，作者用一个简单的方法进行取整。
One problem caused by using simplex method is that the results are fractional values while need integers, and that provides a simple but effective method to solve it.
并运用单纯形方法对各规划年度的公路网等级结构进行了优化，通过综合分析得出客运需求高于货运的结论。
The grade structure of a road network in annual planning is optimized with the simplex method. Conclusions are reached through synthetic analysis.
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