I don't know which textbook you are from, so it's average. 80% is original. I'm sorry if you don't adopt it! ! !

Mathematics is known as the "queen of science" and has always played a decisive role in the expansion of science and technology. With the diversified development of society, the application of mathematics is more extensive. In daily life, we feel that we can learn mathematics through understanding and make mathematics come alive. I gradually understood the abstract mathematical concepts, theorems and thinking methods, as well as the background and development process of mathematical knowledge.

All the mathematical concepts, theories, formulas and equations (algebraic equation, functional equation, differential equation, integral equation, etc. ) constitute an algorithm system, and I also understand that mathematics can be solved by graphics. It is convenient and practical for our life.

I benefited a lot from math books.