The Student's Notebook . [ What you need to know about the course "Ordinary Differential Equations", created by a team of authors, is an indispensable guide for students studying one of the most fascinating and at the same time complex sections of mathematics. This work will become a reliable assistant both for those who are just starting their way in the world of differential equations, and for more experienced students seeking to systematize their knowledge and deepen their understanding of the subject. This memo contains key concepts and methods that will help readers understand the basics of ordinary differential equations. The book covers a wide range of topics, ranging from the simplest first-order equations to more complex systems of equations. In it you will find clear explanations, examples of solutions and useful tips that make the material accessible and understandable. The authors strive not only to present the theory, but also to show how it is applied in practice, which is especially important for students of technical and natural sciences specialties. This memo will be interesting not only for students, but also for teachers who are looking for additional materials for their classes. It can be a great addition to basic textbooks, as well as a useful resource for self-study. If you are preparing for exams or test papers, this book will help you quickly refresh your memory of basic formulas and methods, as well as prepare for solving practical problems. The topics raised in the book cover not only mathematical aspects, but also philosophical reflections on the role of mathematics in science and life. The authors focus on how ordinary differential equations help model real-world processes, such as body movement, heat propagation, and even population dynamics. This makes the material not only theoretically significant, but also practically useful, which will especially attract the attention of students interested in applied mathematics and its applications in various fields. The style of the authors is distinguished by clarity and accessibility of presentation, which allows readers to easily assimilate even the most complex concepts. They use many illustrations and graphs that help to visualize the material and make it more visual. This book will be a great help for those who want not only to pass the exams, but also to truly understand how ordinary differential equations work. If you are looking for books on mathematics that will help you understand differential equations, pay attention to such works as "Differential Equations" and. C. Benediktova