Selected Sections of Higher Mathematics . Issue. 7. Methods of Approximation of Functions" authored by B. In. Yezersky is a fascinating and in-depth study in the world of higher mathematics, which will be a real find for students, graduate students and anyone interested in mathematical methods and their practical application. In this volume, the author offers the reader a unique look at the methods of approximation of functions, which makes it not only a textbook, but also a real guide to complex mathematical concepts. The book covers a wide range of topics related to the approximation of functions, including polynomials, trigonometric functions, and other mathematical constructs. In. In. Ezersky, known for his deep knowledge and ability to explain complex things in simple language, offers readers not only theoretical foundations, but also practical examples that will help them better understand the material. This makes the book especially valuable for those who want not only to learn the theory, but also to apply the knowledge gained in practice. Who can like this publication? First of all, it will be useful for students of mathematical and engineering specialties, as well as graduate students and teachers who are looking for high-quality material to prepare for classes or research . However, interest in the book can also be shown by lovers of mathematics, seeking to expand their knowledge in the field of higher mathematics and its applications. If you are looking for books on mathematics that will help you understand complex topics, such as "methods of numerical analysis", "approximation of functions" or "higher mathematics for engineers", then this publication will be a real find for you. The topics raised in the book range from basic concepts to more complex methods such as interpolation and extrapolation, allowing the reader to gradually delve into the material. Yezersky focuses on the importance of approximation in various fields of science and technology, demonstrating how these techniques can be used to solve real-world problems. This makes the book not only a tutorial, but also a practical guide for engineers, physicists, and other professionals. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily assimilate even the most complex concepts. In. In. Yezersky is known for his other works in the field of higher mathematics, and his experience in teaching and research makes every page of the book rich and informative. Readers familiar with its previous editions will appreciate the consistency and depth of analysis that the author offers in this volume. Selected Sections of Higher Mathematics . Issue. 7. Methods of Approximation of Functions" is not just a textbook, but a real storehouse of knowledge that inspires the study of mathematics and its applications. It will be a valuable addition to the library of everyone who seeks to understand and master higher mathematics. If you are looking for a way to improve your math skills or just want to expand your horizons, this book should definitely be on your reading list.