【摘要】 提出了“扩展单位方格”的概念及“变步长步进法”的算法思想 ,较好地解决了“99创维杯全国大学生数学建模竞赛”B题的第一问题 ,克服了传统的定义搜索法的繁琐、可靠性不高的缺点 .本文的算法简单方便 ,编程计算的可操作性强 .更多还原

【Abstract】 In this paper,a concept of “expanding unit square”and an algorithm of "Change step searching method" is put forward,which solves the first problem of Part B in the 1999 Skyworth Cup Mathematics Modeling Contest For University Students Nation wide.Characteristic of being simple,convenient and feasible,the method may help to avoid the overelaboration and low reliability caused by the traditional " fixed step searching method ".更多还原