Gauss is a German mathematician and scientist. He, Newton and Archimedes are considered as the three greatest mathematicians in history. Gauss is one of the founders of modern mathematics, and he has a great influence in history. He can be juxtaposed with Archimedes, Newton and Euler, and is known as the "prince of mathematics". He showed superhuman mathematical genius when he was young. 1795 entered the University of G? ttingen. The next year, he discovered the regular drawing of regular heptagon. The condition that a ruler can be used as a regular polygon is given, and the unsolved problem since Euclid is solved. Gauss's mathematical research covers almost all fields and has made pioneering contributions in number theory, algebra, non-Euclidean geometry, complex variable function, differential geometry and so on. He also applied mathematics to the study of astronomy, geodesy and magnetism, and invented the principle of least square method. Korea's research on number theory was summarized in Arithmetic Research (180 1), which laid the foundation of modern number theory. It is not only an epoch-making work in number theory, but also one of the rare classic works in the history of mathematics. Gauss's important contribution to algebra is to prove the basic theorem of algebra, and his existence proof opens up a new way of mathematical research. Gauss got the principle of non-Euclidean geometry around 18 16. He also deeply studied the complex variable function, established some basic concepts and discovered the famous Cauchy integral theorem. He also discovered the double periodicity of elliptic functions, but these works were not published before his death. 1828, Gauss published "General Theory of Surfaces", which comprehensively and systematically expounded the differential geometry of spatial surfaces and put forward the theory of intrinsic surfaces. Gaussian surface theory was later developed by Riemann. Gauss published 155 papers in his life. He is very strict with his studies and only publishes what he thinks is mature. His works include the concept of geomagnetism and the law of universal gravitation. Repulsion is inversely proportional to the square of distance. In 180 1 year, Gauss had the opportunity to dramatically demonstrate his superb computing skills. On New Year's Day that year, a celestial body named Ceres was discovered, which was later proved to be an asteroid. At that time, it seemed to be approaching the sun. Although astronomers have 40 days to observe it, they can't calculate its orbit. After only three observations, Gauss proposed a method to calculate the orbital parameters, and the accuracy achieved enabled astronomers to reposition Ceres at the end of 180 1 and the beginning of 1802 without any difficulty. In this calculation method, Gauss used the least square method he created in about 1794 (a method that can get the best estimate from the minimum sum of variance in a specific calculation), and this method was recognized in astronomy. The method described in his celestial motion theory is still used today, and it can meet the requirements of modern computers with a little modification. Gauss achieved similar success on the asteroid "Pallas Athena". Because of his outstanding research achievements in mathematics, astronomy, geodesy and physics, Gauss was elected as a member of many academies and academic groups. The title of "King of Mathematics" is an appropriate tribute to his life.