Chinese name: Chaos English name: Chaos Definition 1: In a nonlinear deterministic system, the aperiodic behavior is caused by the nonlinear interaction within the system. For example, atmospheric turbulence caused by thermal convection is a chaotic phenomenon. Applied discipline: atmospheric science (first-class discipline); Dynamic meteorology (two disciplines) definition 2: a process that is sensitive to the initial state and shows periodicity, aperiodicity and unpredictability. Applied discipline: geography (first-class discipline); Quantitative geography (two disciplines) definition 3: seemingly random and unpredictable motion in deterministic nonlinear dynamic systems. It is extremely sensitive to initial conditions. Applied discipline: mechanical engineering (first-class discipline); Vibration and shock (two disciplines); Mechanical vibration (third-level discipline) Definition 4: Dynamics of nonlinear deterministic systems sensitive to initial conditions, and lyapunov index is positive. Applied discipline: ecology (first-class discipline); Interpretation of the chaotic pinyin hùn dùn Zhu Yin ㄏㄨㄣㄉㄨㄣ in Mathematical Ecology (two disciplines) (1) [Chaos (the original state of the universe in folklore)]. (2) 【 Naive as a child 】: Describe the appearance of ignorance. Qing Tian Lanfang's Slogan of Shixiantang (Yuan Keli Hall): "Chaos is not as stupid as a gentleman." (3) [Confused]: Confused (often used to call names) The ancient book "Nerve" said: Chaos is like a dog, with four feet without claws, blind eyes, inconvenient walking, wings, bullying the weak and fearing the hard, and likes cruel people, so it is called "Chaos". Pronunciation: hùn dùn nù nù Explanation: 65438. ; 2. describe the appearance of confusion and ignorance. Chaos generally corresponds to one of the first generation gods, and some correspond to one of the second and third generation gods. The chaos of the former is "primitive chaos"; The latter kind of chaos is "daily chaos" and "ultimate chaos". In ancient times, the former was more prominent; In modern times, especially in modern science, the latter is more prominent. Thermodynamics is about ultimate chaos; Nonlinear dynamics talks about daily chaos. Interpretation is also written in chaos, and the ancients did not open up a vague state of the universe before imagining heaven and earth. Corresponding to the English word chaos. Taoism calls "the land of vitality" and "Huainanzi Yan Quan": "The point is the same as heaven and earth, and the chaos is simple. If you don't do it, it's too one. " Wang chong's "On Balance and Talking about Heaven": "The Yi-talker said,' The vitality is not divided, and chaos is one.' Later, it was used to describe the vague appearance: in this chaotic light, there was a clear light, which was a miracle. Also described as naive and confused: it is really unreasonable to be with that kind of confused and ignorant person. Interpretation of Modern Chinese Dictionary: 1) The legend of China refers to the vague scene before the formation of the universe. 2) describe ignorance. This explanation does not include foreign usage, nor does it summarize the usage of chaos in modern Chinese. 3) Confused and ignorant. Chaos begets infinity, infinity begets Tai Chi, Tai Chi begets two instruments, two instruments begets four images, and four images begets gossip!