Digitality and symmetry are the most direct and basic characteristics of books, and the mathematical relationship between "harmony" and "difference" is its basic connotation. It is completely possible to prove or deduce the river map and Luo Shu by mathematical methods, and prove that the river map and Luo Shu come from the same source. It can also be found that there is a certain degree of connection between river map, Luo Shu, abacus and swastika.
Black spots and white spots arranged in several arrays on the river map contain infinite mysteries; The sum of the three numbers on the vertical, horizontal and diagonal lines in Luoshu is equal to 15, which is very wonderful. Scholars at home and abroad have conducted long-term exploration and research on this issue, believing that it is the crystallization of the spiritual thinking of Chinese ancestors and the first milestone of ancient civilization in China.
The Book of Changes and Hong Fan occupy an important position in the history of China's cultural development, and have far-reaching influence in the fields of philosophy, politics, military science, ethics, aesthetics and literature. As the historical and cultural origins of China, Hetu and Luoshu played an important role.
Draw nine palaces. There is a formula in the picture: "Nine palaces are shoulders 24, feet 68, left three right seven, shoes nine and middle five." The ancient writing habit was from right to left, which is contrary to our present habit.