Special Sections of Mathematics: Theory of Functions of a Complex Variable: Foundations of Operating Calculus by Zaripov R. N. is not just a textbook, but a real find for anyone who seeks to deepen their knowledge in mathematics and applied sciences This work will be of interest to both undergraduate and graduate students, as well as teachers who are looking for quality material to study and teach the theory of functions of complex variable and operational calculus. In this book, the author masterfully combines theoretical aspects with practical tasks, which makes the material accessible and understandable. Zaripov R. N. It invites readers to immerse themselves in the world of complex functions, revealing their properties and possibilities of application in various fields of science and technology. The book covers a wide range of topics, ranging from the basics of complex analysis to more complex concepts such as integrals and series. This allows the reader not only to master the basic principles, but also to delve into more complex aspects, which makes the book useful for all levels of training. The book pays special attention to operational calculus, which is an integral part of many modern mathematical and engineering problems. Zaripov R. N. explains how to use operational calculus to solve differential equations and other mathematical problems, which makes the material relevant for students of technical specialties and specialists in the field of applied mathematics. Who can like this book? First of all, it will be of interest to students of mathematical and engineering specialties, as well as those who study physics and other sciences where knowledge of complex analysis is required Teachers will find it useful materials for lectures and seminars, and graduate students will be able to use it as a reference for writing scientific papers. Even those who are just interested in mathematics and want to expand their horizons will find in this book a lot of interesting and useful. The topics raised in the book cover not only theoretical aspects, but also the practical application of mathematical concepts. Zaripov R. N. focuses on the importance of complex analysis in modern scientific research and technologies, which makes the book relevant and in demand The reader will be able to see how theoretical knowledge is applied in practice, which will inspire him to further study and research. The author's style is clear and accessible. Zaripov R. N. He is able to explain complex things in simple language, which makes his book especially attractive to a wide audience. His previous work has also been recognized for its in-depth analysis and practical focus, and this book is no exception. If you are looking for a high-quality tutorial on the theory of complex variable functions and operational calculus that will not only deepen your knowledge, but also help you to apply them in practice, then “Special Sections of Mathematics” is exactly what you need. Do not miss the opportunity to immerse yourself in the world of mathematics with this wonderful book, which will become your reliable companion on the way to new knowledge and discoveries.