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数概念的形成和发展经过了漫长的历史阶段。数起源于“数”,实践中由于“数”东西,逐渐产生了最初的数概念——自然数。“数”东西时可能出现没有东西的情形,产生了零的概念。解决度量中量不尽的问题,产生了分数。为了表达具有相反意义的量,产生了负数。探讨无公度线段的比,产生了无理数。研究代数方程解法的一般理论问题,产生了虚数,从而使数的概念逐步扩展,建立起了复数系统。
The formation and development of the concept of numbers have taken a long history. Numbers originate from “numbers,” and in practice, due to the “numbers” of things, the initial number concept, natural numbers, gradually emerged. There may be no things when “number” things, resulting in the concept of zero. Solve the quantifiable problem in the metrics and generate points. In order to express quantities of opposite meaning, negative numbers are generated. Examining the ratio of incommensurate segments produces irrational numbers. Studying the general theoretical problems of the solution to algebraic equations yields imaginary numbers, thereby gradually expanding the notion of numbers and establishing a plural system.