How to calculate the sixty-four hexagrams of Zhouyi?

There are sixty-four hexagrams in Zhouyi, and each hexagram is formed by overlapping two classics. The first hexagram is called the upper hexagram, and the second hexagram is called the lower hexagram. According to the rules of the Book of Changes, the combination of the upper and lower meridians is fixed. Specifically, there are eight divination images: Gan, Kun, Truth, Xun, Kan, Li, Root and Right. These eight divination images are called Eight Diagrams, and each divination consists of three divination images.

The formula of sixty-four hexagrams is to combine two groups of eight diagrams into sixty-four hexagrams, and each hexagram consists of six hexagrams. Specifically, each eight diagrams can be combined with another eight diagrams to generate sixty-four diagrams. In cooperation, the first one (the bottom one) cooperates with the first one, the second one cooperates with the second one, and so on until the sixth one cooperates.

In divination, we also need to consider dynamic factors. Dynamic hexagrams means that each of the sixty-four hexagrams has several hexagrams, one of which is regarded as dynamic because of its special nature, and the opposite one is regarded as static. The determination of dynamic divination is one of the important steps in divination, which determines the change and trend of each divination.

Generally speaking, the algorithm of the sixty-four hexagrams in Zhouyi follows certain rules and steps, but it should be noted that divination is not a scientific method, and its results are for reference only and should not be used as the only basis for decision-making.