Split everywhere; Can't concentrate

The crowd dispersed at the first shot.

1. Discrete; Parting "Zuo Zhuan Huan Gong Five Years": "Public illness is chaotic, and people are scattered." Tang Du Fu's poem "Remembering Brothers on a Moonlit Night": "Ah, my brothers, lost and scattered, what is the meaning of life without you? "Revenge of Zheng Huchen, an ancient and modern novel": "Jia She has been unhappy all day since Hu and his mother separated." Ba Jin's Memories of Xiao Shan IV: "From Kunming to Guilin, from Jinhua to Wenzhou, we parted, met again, and then separated."

2. communication; Here. Biography of Historical Records of Huo Zhi: "In nineteen years, three people paid one thousand yuan, then dispersed and made friends with the poor. This so-called rich and wise man is also. " Interpretation of Confucian family language and Confucianism: "Those who disperse are benevolent." Wu Songming's "Scholar's Public Discussion" volume: "Take yourself as your position and accumulate a huge amount. I don't know how to disperse."

3. refers to distribution. "Surprise at the First Moment" Volume 36: "I can understand the number of clothes scattered on the tomb."

4. Separate; Spread out. "Southern History, Biography of Xiaoyi, Wife King": "The cypress tree suddenly got married in front of the tomb, and then dispersed a year later." Tang Hanyu's "Huangling Temple Monument": "There are stone tablets in the court, and the faults are scattered on the ground, and their texts are lacking." Zhu Ziqing's "Executive Yuan Massacre": "I don't know if the first row of guns of the guards were fired into the air. Even if they were fired into the air, it was not a warning, because the crowd had dispersed before the shooting."

Second, discrete

Discrete mathematics is a mathematical discipline that studies the structure and relationship of discrete quantities and an important branch of modern mathematics. It is widely used in various disciplines, especially in computer science and technology. At the same time, discrete mathematics is also a necessary prerequisite for many professional courses of computer specialty, such as programming language, data structure, operating system, compilation technology, artificial intelligence, database, algorithm design and analysis, theoretical computer science foundation and so on.

Through the study of discrete mathematics, we can not only master the descriptive tools and methods for dealing with discrete structures, but also create conditions for subsequent courses, improve abstract thinking and strict logical reasoning ability, and lay a solid foundation for participating in innovative research and development in the future.

Because the digital electronic computer is a discrete structure, it can only deal with discrete or discrete quantitative relations. Therefore, both computer science itself and modern scientific research fields closely related to computer science and its application are faced with the problem of how to establish corresponding mathematical models for discrete structures. How to discretize the mathematical model established by continuous quantitative relationship so that it can be processed by computer.