The Book of Mathematics . At 4 p.m.. H. 4" by A. In. Metelsky is the final part of an extensive training course that covers key aspects of mathematical science. This work will become an indispensable resource for students, teachers and anyone who seeks to deepen their knowledge in the field of mathematics. In this part, the author continues to develop the topics started in previous volumes and offers readers a unique perspective on complex mathematical concepts. In "Mathematics. At 4 p.m.. H. 4" Metelsky focuses on important sections such as analysis, algebra, and geometry, as well as their interrelation. The reader will be able to get acquainted with new methods of solving mathematical problems, which will help not only in studying, but also in practical activities. The book is replete with examples, tasks and illustrations, which makes the material accessible and understandable . Interestingly, the author not only outlines the theory, but also shows how to apply mathematical knowledge in real life, which makes the learning process more exciting and practical. This book will be especially useful for high school and university students, as well as teachers who are looking for quality material to prepare for classes. It is suitable for those who are interested in mathematics at a deeper level, as well as those who are ready for intellectual challenges. If you like to solve puzzles, solve complex problems and immerse yourself in the world of numbers and formulas, then “Mathematics . At 4 p.m.. H. 4" will be a real find for you. Topics raised in the book range from the basics of mathematical analysis to more complex questions such as theorems and their proofs. Metelsky is not afraid to touch on complex aspects, which makes his book interesting for more experienced readers seeking to expand their horizons. It skillfully combines theory and practice, which allows the reader not only to assimilate the material, but also to apply it in various situations. Style A. In. Metelsky is distinguished by the clarity and logic of the statement . He is able to explain even the most complex concepts, which makes his books popular among students and teachers. Metelsky has already established himself as an author of high-quality teaching aids, and “Mathematics. At 4 p.m.. H. 4" is no exception. His previous works, such as "Mathematics. At 4 p.m.. H. 1", "Mathematics. At 4 p.m.. H. 2" and "Mathematics. At 4 p.m.. H. 3", also received positive reviews and became the main training materials in a number of educational institutions. If you are looking for a high-quality and detailed mathematics textbook that will help you not only prepare for exams, but also develop analytical thinking, then “Mathematics . At 4 p.m.. H. 4" is exactly what you need. The book will become your reliable companion in the world of numbers and formulas, open new horizons and help overcome any mathematical obstacles. Do not miss the opportunity to immerse yourself in the fascinating world of mathematics with A. In. Metelsky!