1. When human beings enter primitive society, they need mathematics. From early knotting to learning to count, to simple addition, subtraction, multiplication and division, these are all mathematical problems encountered in human daily life. Mathematics is graded, just like the operation of natural numbers is the level of primary school students, beyond which primary school students can't understand it.

Just like primary school students with unknowns can't start, the occurrence and development of mathematics evolved from low level to high level. Arithmetic was first understood by human beings. After a period of development, arithmetic developed to equations and functions, and then to modern mathematics.

2. Great achievements were made in the development of human mathematics in ancient Greece. It is strange that the logarithmic operation in ancient Greece was not outstanding. On the contrary, geometry, which can only be learned in middle schools, laid the foundation in ancient Greece. Those who have studied geometry are no strangers to Euclid. Euclid was an ancient Greek mathematician and was called "the father of geometry".

His most famous book, The Elements of Geometry, is the foundation of European mathematics, and puts forward five postulates, Euclidean Geometry, which is widely regarded as the most successful textbook in history. Euclid also wrote some works about perspective, conic curve, spherical geometry and number theory.

3. Geometry played a very important role in ancient Greek education. The six Greek arts advocated by Plato include geometry. Later, Greek culture declined, Greece was invaded, and the books in Greek libraries were plundered and preserved by Arabs.

Arithmetically speaking, Arabs' contribution to mathematics is the ten most familiar numbers, which are called Arabic numerals. However, in the process of mathematics development, Arabs mainly absorbed and preserved the mathematics of Greece and India and passed it on to Europe.

The Arabs adopted and improved India's numerical notation and carry notation, adopted India's mathematical notation and carry notation, and adopted India's irrational number operation, but gave up the negative number operation. The name algebra was invented by Arabs. Arabs have also worked out some linear, quadratic or even cubic equations.

Fibonacci was a representative figure of European mathematics in 12 and 13 centuries. He introduced the commercial applications of Indian Arabic numerals, position notation and various algorithms to Europeans. China's technique of surplus and deficiency and the solution of indefinite equation in Sunzi Suanjing also appeared in Fibonacci's book. Besides, he has many old jobs.