Encyclopedia of Elementary Mathematics . Book 3. Functions and limits" edited by P. C. Alexandrova is not just a textbook, but a real find for anyone who wants to better understand the basics of mathematics and its application in various fields. This book will become an indispensable companion for both students and teachers, as well as for all who seek to expand their knowledge in the field of mathematical analysis. In the third volume of the Encyclopedia of Elementary Mathematics, the authors focus on key concepts such as functions and limits. These topics are foundational in mathematics and play an important role in various scientific disciplines. The book offers readers not only theoretical foundations, but also practical examples that will help them better absorb the material. You will be able to get acquainted with various types of functions, their properties and graphs, as well as how the limits help in analyzing the behavior of functions. This book will be of particular interest to students studying mathematics, physics, engineering and other technical sciences. It is also suitable for students preparing for exams, and anyone who wants to refresh their knowledge in the field of mathematics. If you are passionate about mathematics and want to understand complex concepts such as continuity, differentiation and integrability, then the Encyclopedia of Elementary Mathematics will become a real storehouse of knowledge for you. The topics that are raised in the book cover a wide range of issues, ranging from simple functions to more complex concepts related to limit processes. The authors pay special attention to the intuitive understanding of these concepts, which makes the material available even to those who do not have deep knowledge in mathematics. The book is replete with visual illustrations and graphs that help to visualize complex ideas and make the learning process more fascinating. The style in which the Encyclopedia of Elementary Mathematics is written is distinguished by clarity and logic. The authors seek to explain even the most complex concepts in a simple and accessible language, which makes the book ideal for self-study. P. C. Alexandrov, as an editor, is known for his attention to detail and his desire to present the material in the most convenient form. His other works, such as Elements of Mathematical Analysis and Fundamentals of Mathematical Logic, have also been recognized for their accessibility and depth of presentation. Encyclopedia of Elementary Mathematics . Book 3. Functions and Limits" is not just a textbook, but a whole world in which mathematics becomes comprehensible and fascinating. It inspires to study and opens new horizons for those who are ready to plunge into the world of numbers and formulas. If you are looking for a quality source of knowledge that will help you understand mathematics and prepare for exams, this book will be your faithful assistant. Do not miss the opportunity to get acquainted with the "Encyclopedia of elementary mathematics" . It will surely find a response from everyone who appreciates the quality and depth of knowledge .. Immerse yourself in the world of functions and limits, and discover new horizons of mathematical analysis!