Discrete Mathematics is the mathematics of discrete structures and their relationship,it is used to study the distribution of China Dendrobium species, three ways to express the distribution of Dendrobium species were Given,and the one-to-many, many to many, many-to-one relationship between China Dendrobium Set D and distribution area Set F. Two compatible relations R and r are defined in set F and set D, the maximum compatibility classes and coverage were given about R and r. Relational data model was provided for computer analysis and processing to obtain more valuable information.%离散数学是研究离散量结构及其相互关系的数学学科.应用离散数学的思想和方法,研究中国石斛种类分布问题,给出中国石斛种类分布的3种表示方法,探索中国石斛集合D与分布地区集合F之间的一对多、多对多、多对一关系.在集合F与D内定义2个相容关系R与r,并给出R与r的最大相容类与覆盖.这可为计算机进行分析处理提供关系数据模型,从而获得更多更有价值的信息.
展开▼
