The formative period of mathematics is the period when human beings establish the most basic mathematical concepts. Since counting, human beings have gradually established the concept of natural numbers, simple calculation methods, and recognized the most basic and simplest geometric forms. Arithmetic and geometry are not separated.
geometry
The second period
Elementary mathematics is a constant period of mathematics. The most basic and simple achievements in this period constitute the main content of middle school mathematics. This period began in the 5th century BC, maybe earlier, and lasted for about two thousand years until17th century. This period gradually formed the main branches of elementary mathematics: arithmetic, geometry and algebra.
tertiary
The period of variable mathematics. Variable mathematics came into being in17th century, and has gone through two decisive and significant steps: the first step is the generation of analytic geometry; The second step is calculus, that is, the branch of mathematics that studies the differential and integral of functions and related concepts and applications. It is the basic subject of mathematics. The content mainly includes limit, differential calculus, integral calculus and its application. Differential calculus, including the calculation of derivatives, is a set of theories about the rate of change. It makes the function, velocity, acceleration and curve slope can be discussed with a set of universal symbols. Integral calculus, including the calculation of integral, provides a set of general methods for defining and calculating area and volume.
The fourth stage
Modern mathematics. The period of modern mathematics began roughly from the first half of19th century. The beginning of the modern stage of mathematics development is characterized by profound changes in all foundations-algebra, geometry and analysis.
research results
introduce
The Chinese nation is a nation with splendid culture and a long history. Among the splendid cultural treasures, mathematics also has many dazzling auras in the history of world mathematics development. Many research achievements of China's ancient arithmetic have given birth to advanced thinking methods of western mathematical design, and many world-leading mathematical research achievements in modern times are named after China mathematicians.
Lee's constant formula
Mathematician Li's research achievements in the summation of series are named Li's constant internationally.
Fahrenheit theorem
Fahrenheit theorem is the research result of Hua, a famous mathematician in China. Fahrenheit theorem is that a semi-automorphism of a body must be automorphism, automorphism or anti-isomorphism. Mathematician Hua's research results on complete triangular sum are called "Fahrenheit theorem" by the international mathematics community; In addition, he and mathematician Wang Yuan put forward the approximate calculation method of multiple integrals, which is internationally known as the "King of China Method".
Hua
Su's cone
Mathematician Su's research achievements in affine differential geometry are named "Su's cone" internationally. Academician Su's wonderful discovery about affine differential geometry is that he constructed a quartic (cubic) algebraic cone that is invariant to general surfaces. In the visiting surface theory, many covariant geometric objects, including two principal tangents, three Dabao tangents, three Segray tangents and affine normals, can be reflected by this cone and its three vertex lines in a wonderful way, forming a very attractive composition. This cone is called Su cone.