High number indentation is a mathematical concept, which simply means that "the image of a function is concave below the function". The so-called "concave" means that the image of the function presents a curved shape similar to a notch, whereas it is "convex", that is, the image of the function presents an upward arc. Concave function is a very important mathematical object, because it is very important for us to understand abstract concepts such as surfaces or curves.

Taking concave with high number is not only an interesting mathematical theory, but also one of the methods to solve practical problems in various fields. For example, in the financial field, we can study the relationship between the risk and return of a portfolio by taking the high number as the concave. In physics, we can establish the physical model of objects in the real world by taking concave from high numbers, so as to better understand and predict some natural phenomena. In the field of chemistry, high-order concave extraction is also widely used in liquid separation and kinetic research of chemical reaction process.

The concept, formula and theory of taking concave from high numbers have raised our thinking to a more abstract and in-depth level. After mastering the knowledge about taking concave from high numbers, we began to notice that many things in the world around us are concave, and we can think about the shape, development and movement of these things from this angle. At the same time, the study of taking concave from high numbers also embodies the inner beauty and profundity of mathematics, which inspires people to explore more and discover more mysterious work.