That is, when n tends to infinity, only the high-order honey of n is considered, and the low-order power can be ignored. You must have used this method before, only with a new name.

Infinitely entering mathematics is another feature of higher mathematics. Everything in the real world appears in a limited form, and infinity is a summary of their identity. Therefore, infinite entry into mathematics is the embodiment of high theorization and abstraction of mathematics. Infinity in mathematics appears in two forms: latent infinity and real infinity.

In the limit process, the change of variables is infinite and belongs to the form of infinite potential. The existence of limit value reflects the real infinite process. The most basic limit process is the limit of sequence and function.

Based on it, mathematical analysis establishes various concepts and related theories to describe the local and global characteristics of functions, and initially successfully describes the uneven changes and movements in the real world. Other more abstract limit processes also play a fundamental role in other mathematical disciplines.