Throughout the twelve emperors of the Qing Dynasty, there were many emperors such as Kang, Yong and Gan, who created the prosperous times of the Qing Dynasty. Historians have their own comments on the crimes committed by the Twelve Emperors in the past century. In my opinion, Emperor Kangxi is the greatest generation of emperors. Can be described as "Qin Huang Hanwu, a little less coquettish" Tang Zong Song Zu, slightly lost his literary talent. Kangxi, a hero in the Qing dynasty, was unparalleled. "Since I came here, emperors have stood out, and their literary talent and martial arts are unparalleled. According to the records of Qing history, Emperor Kangxi attached great importance to scientists. During the Kangxi period, western natural science was introduced into China soon, and was looked down upon by ordinary scholars. Kangxi, on the other hand, forgot to eat and sleep, and was crazy about it. Kangxi knew all about mathematics, astronomy, calendar, physics, biology, foreign languages, engineering technology and other natural sciences.
At the same time, he attaches great importance to science and respects scientific talents. When he saw the almanac written by scientist Mei Wending, he said happily, "I have been paying attention to almanac for many years, and I can judge whether it is right or wrong. Leave the book here and let me read it before sending it. " He read it carefully, personally commented and spoke highly of it: "He is very careful and fair, and this person is very hard." In A.D. 1705, Kangxi personally summoned Mei Wending on board during his southern tour and met with him three times in a row. Afterwards, Kangxi told others that although he paid great attention to the knowledge of calendars and arithmetic, "there is very little knowledge in this field now, and people who are proficient like Mei Wending are really rare." Therefore, he personally presented Mei Wending with "Achievement and Learning" in recognition of his achievements. Even Kangxi personally presided over the compilation of the Law of Justice, and immediately sent it to Mei for review and correction.
Kangxi also put some talented young and middle-aged talents around him and taught them personally. He called Chen Houyao, a scholar who is familiar with astronomical calendars, to the south study room to teach "western orientation method" and "virtual method" in person, and also called Chen Houyao to Yuan Jianzhai to "ask questions repeatedly". Another famous scientist, Minggatu, is from Zhengbaiqi, Mongolia. With outstanding achievements, the official is Qin Tian. Emperor Kangxi found his intelligence different and liked it very much. He ordered him to stay with him when he went out on patrol. Along the way, Kangxi told Mingatu that he, like his master and apprentice, was "influenced by the mathematics of Emperor Saint Zuren and was proficient in Austria". Kangxi summoned Mei Wending and Mei Juecheng to the palace, let him participate in the compilation of calendars and arithmetic, and taught him the method of borrowing roots. Mei Juecheng claimed to be "dedicated to the Imperial Palace, and was given the method of borrowing roots by Emperor Saint Zuren. Love and read it, and its method is wonderful. "
Kangxi often asked ministers to recommend folk scholars with strange skills. "Anyone who has a skill is often called Meng Yangzhai directly." Because Kangxi attached importance to scientific and technological talents, natural science developed during this period. Several important projects in the history of China's science were also completed at this time. Among them, the book "Essence of Mathematics" arranged the western mathematics knowledge introduced at that time in a very orderly way, made a picture and a table, and made a comparative study with ancient mathematics. It is a book that "compares the similarities and differences between China and the West, and debates the length of the past and the present". It is called "a book that has never existed since ancient times. Although it is a famous writer, it failed to see its profound meaning in case", representing the level of mathematical development at that time.