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人类由于实际需要,在很长的历史过程中,逐漸形成了数目的概念;人类的历史初期,就有了关于自然数以及簡单正分数的知識。公元前五世紀,希腊学者已认出某些无理数;我国古代数学家在“九章算术”一书中已能較多地应用分数,并且有某些正負数的知識。由于九章算术成书年代尚无定論,不过总是公元一世紀以前的事。复数則出现在十六世紀。經过长期实践以及理論上的研究,才达到我們現在这样完整的数的系統:自然
Due to the actual needs of human beings, the concept of numbers has gradually been formed in the course of a long history; in the early days of human history, there was knowledge about natural numbers and simple positive scores. In the 5th century BC, Greek scholars had recognized some irrational numbers; ancient Chinese mathematicians have been able to apply scores more frequently in the book “Nine Chapters of Arithmetic” and have some positive and negative knowledge. Since the 9th chapter of the arithmetic has not yet been finalized, it is always before the 1st century AD. The plural appeared in the sixteenth century. After a long period of practice and theoretical research, we have reached the number of systems we now have: natural