Which school is Ni Doushu?

Zhongzhou school Ni Doushu is one of the numerology schools of Zhongzhou School. Zhongzhou School originated in Zhengzhou, Henan Province, originated in the ancestral hall of the Avenue in the Tang Dynasty, and gradually evolved into a multi-faction numerology school in later history. Among them, Ni Dou Shu is a kind of Zhongzhou school, which mainly emphasizes the calculation of fate through the astrolabe, including various elements such as the life palace, the main star of the life palace, the life palace with time constellation, etc., so as to calculate the good or bad of life and guide people to deal with and plan the future. At the same time, Ni Dou Shu also pays attention to the application of ancient hexagrams, and has in-depth research on divination, geomantic omen, geography, etc. He is a relatively comprehensive and systematic numerology school.