The book "All Higher Mathematics, Volume 4" by Mikhail Krasnov and his co-authors is an indispensable work for all who seek to deepen their knowledge in the field of higher mathematics. This volume, like the previous ones, is a comprehensive and systematic presentation of complex mathematical concepts that are necessary for both students and professionals working in the scientific and engineering fields. In this volume, the authors continue to explore important topics such as function theory, complex analysis, and differential equations. Each chapter is imbued with deep reflections and examples that allow the reader not only to learn the theory, but also to see its practical application. The book is written taking into account modern educational standards and includes many tasks and exercises that will help to consolidate the studied material. This makes it an ideal tool for both self-study and use in educational institutions. "All Higher Mathematics, Volume 4" will be of interest to a wide range of readers - from students of technical and mathematical specialties to teachers and researchers. If you are passionate about mathematics, physics or engineering, then this book will be a real treasure for you. It will not only expand your knowledge, but also help you develop the analytical thinking you need to solve complex problems. The topics raised in the book cover key aspects of higher mathematics, such as integrals, series, transformations, and their applications in various fields of science. The authors emphasize the importance of mathematical modeling and its role in modern research, which makes the book especially relevant in the context of the rapid development of technology. Each section is illustrated with real-life examples, allowing the reader to see how abstract mathematical concepts find their application in areas ranging from physics to economics. The style of Mikhail Krasnov and his colleagues is clear and accessible, which allows even the most complex topics to be understandable to a wide audience. Krasnov is known for its textbooks and manuals, which are popular among students and teachers. His approach to learning is based on the principles of logic and consistency, which makes the learning process fun and productive. If you are looking for books on higher mathematics that will help you not only understand, but also love this science, "All Higher Mathematics, Volume 4" will be an excellent choice. It can be your reliable companion in your studies and scientific activities, as well as a source of inspiration for further research. Do not miss the opportunity to immerse yourself in the world of high mathematical ideas and concepts that open up new horizons of knowledge and opportunities for you. This book is not just a textbook, but a real encyclopedia of mathematical knowledge that will be useful for both beginners and experienced specialists. Allow yourself to discover the amazing world of higher mathematics with the help of the work of Mikhail Krasnov and his team.