What is image mathematics in Zhouyi?

In Zhouyi theory, the so-called' image' refers to the characteristics and characteristics of everything.

And' image number' refers to the mathematical relationship with the specific things (that is, the five elements) in the Eight Diagrams of Zhouyi.

For example, the horse belongs to the dry divination in Zhouyi theory, and its representative feature is: health. The specific mathematical theory of the five elements in the Eight Diagrams of Zhouyi is 1, so the number of horses is 1, and their characteristics are health and action.