only filled the gaps in China's past, but also reached the world's advanced level. During the chaos of the Cultural Revolution, the sciences declined. In the field of mathematics, in addition to Chen Jingrun, Hua Luogeng, Zhang Guanghou and other mathematicians struggling to continue their work. After the catastrophe, with the publication of Guo Moruo's literary "Spring of Science", Chinese sciences and mathematics experienced a revival. In 1977, a new mathematical development plan was formulated in Beijing, the work of the mathematics society was resumed, the journal was re-published, the academic journal was published, the mathematics education was strengthened, and basic theoretical research was strengthened. An important mathematical achievement of the Chinese mathematician in the direction of the power system is how Xia Zhihong proved the Painleve conjecture in 1988. When there are some initial states of N celestial bodies, one of the celestial bodies ran to infinity or speed in a limited time. Infinity is reached, that is, there are non-collision singularities. The Painleve conjecture is an important conjecture in the field of power systems proposed in 1895. A very important recent development for the 4-body problem is that Xue Jinxin and Dolgopyat proved a non-collision singularity in a simplified version of the 4-body system around 2013. In addition, in 2007, Shen Weixiao and Kozlovski, Van-Strien proved the Real Fatou conjecture: Real hyperbolic polynomials are dense in the space of real polynomials with fixed degree. This conjecture can be traced back to Fatou in the 1920s, and later Smale posed it in the 1960s. The proof of Real Fatou conjecture is one of the most important developments in conformal dynamics in the past decade. Performance at the IMO In comparison to other participating countries at the International Mathematical Olympiad, China has highest team scores and has won the all-members-gold IMO with a full team the most number of times. Mathematical texts Zhou Dynasty Zhoubi Suanjing c. 1000 BCE-100 CE Astronomical theories, and computation techniques Proof of the Pythagorean theorem (Shang Gao Theorem) Fractional computations Pythagorean theorem for astronomical purposes Nine Chapters on the Mathematical Art 1000 BCE? – 50 CE ch.1, computational algorithm, area of plane figures, GCF, LCD ch.2, proportions ch.3, proportions ch.4, square, cube roots, finding unknowns ch.5, volume and usage of pi as 3 ch.6, proportions ch,7, interdeterminate equations ch.8, Gaussian elimination and matrices ch.9, Pythagorean theorem (Gougu Theorem) Han Dynasty Book on Numbers and Computation