By the change of group algorithm in "delete of useless symbol and useless production",it has been studied through the way of graphics,and an explanation of the existence of order in using the delete algorithm is given.
通过对"无用符号及无用产生式删除"的集合论算法的等价变换,从图论角度对其进行了初步研究,并进一步解释了算法顺序性的存在原因。
参考来源 - 基于图论的对“无用符号及无用产生式删除”的算法研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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