Emperor Kangxi personally realized the importance of mathematics and hoped that the descendants of the Eight Banners could also study mathematics seriously. 17 13 years, Kangxi established the Mathematics Museum. "Chen Zhen's officials who are good at mathematics perform their duties, and Prince Dong Zhi specializes in picking the children of the Eight Banners to learn algorithms." Jean FrancoiseFoucquet, a French missionary, once described the situation of this school in his works: "An institution similar to a school has been established. ..... He (Emperor Kangxi) selected all the people who were good at different branches of mathematical science from the Han nationality and the Eight Banners in Beijing or other provinces. In order to please him, governors and senior officials introduced some scholars with superior intelligence and the most suitable for scientific research. ..... He selected more than 100 people: they were selected from all knowledgeable officials, calculators, geometricians, musicians, astronomers and a large number of instrument manufacturers. For this group of people, he built a vast place with many buildings-Changchun Garden, and appointed his third son as the leader of this new college. " The establishment of special schools to impart mathematics knowledge provides institutional guarantee for the children of the Eight Banners to popularize mathematics. However, this kind of "promotion" was limited to the palace and did not benefit the whole country.