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离散数学图论 #19
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离散数学 离散数学 (Discrete mathematics) 是研究离散量的结构及其相互关系的数学学科,是 现代数学 的一个重要分支。 离散的含义是指不同的连接在一起的元素,主要是研究基于离散量的结构和相互间的关系,其对象一般是有限个或可数个元素。 离散数学(Discrete Mathematics) Discrete mathematics is the study of mathematical structures that are fundamentally discrete rather than continuous. ——wikipedia 由于计算机是一个离散结构,它只能处理离散的或离散化了的数量关系 因此,无论计算机科学本身,还是与计算机科学及其应用密切相关的现代科学研究领域,都面临着如何对离散结构建立相应的数学模型;又如何将已用连续数量关系建立起来的数学模型离散化,从而可由计算机加以处理。 |
用一组基本的指令来编制一个计算机程序,非常类似于从一组公理来构造一个数学证明。 “我现在年纪大了,搞了这么多年的软件,错误不知犯了多少,现在觉悟了。我想,假如我早年在数理逻辑上好好下点工夫的话,我就不会犯这么多的错误。不少东西逻辑学家早就说过了,可是我不知道。要是我能年轻二十岁的话,我就回去学逻辑。” |
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