The Book of Mathematics . Differential equations and series: Methodical instructions for performing control work . For students of ZF 3rd" is an indispensable assistant for students mastering complex sections of higher mathematics, especially those who are faced with the study of differential equations and series. Created by a team of authors, this book is a practical guide that will help students not only understand the theoretical foundations, but also successfully prepare for test papers, exams and independent assignments. The focus of this publication is the method of performing control work on differential equations and series . The author’s team carefully structured the material in order to simplify the perception of complex mathematical concepts as much as possible, to make them available to students studying in faculties related to engineering, physics, economics and other technical areas. The book contains step-by-step instructions, practical recommendations and examples, which allows students to consolidate knowledge and develop the skills of analytical thinking necessary to solve typical problems. Particular attention is paid to the current aspects of preparation for control work - from the analysis of typical errors to methods of rapid analysis and systematization of solutions. The book deals in detail with issues related to the solution of differential equations of various types, as well as methods of working with infinite series, which is especially important for those who want to deepen their knowledge and increase the level of mathematical literacy. The structure of the material contributes to a gradual immersion in the topic, starting with basic concepts and ending with more complex tasks, which makes the book useful both for students who are just beginning to study these sections, and for those who want to refresh and systematize their knowledge. The Book of Mathematics.. [ [ Differential Equations and Rows" is perfect for third-year students of correspondence and full-time departments, as well as for those who are preparing to take exams and test papers. Its feature is clarity of presentation and practical orientation, which makes the material not only understandable, but also applicable to real-world tasks. This book will be an excellent help for those who appreciate a systematic approach to the study of mathematics, likes to solve complex problems and strives for a deep understanding of the subject. The author's team, known for its pedagogical developments and methodological recommendations, created a publication that stands out among similar manuals due to its practical value and orientation to the real requirements of the educational process. The style of presentation is lively, accessible and motivating, which contributes not only to the development of theoretical material, but also to the development of independence in solving problems. There are many illustrations, diagrams and examples in the book, which makes learning more visual and fascinating. If you are looking for a book that will help you prepare for the test work on differential equations and series, as well as increase your confidence in solving complex problems, "Mathematics. Differential equations and series: Methodical instructions for performing control work . For 3rd grade students" is exactly what you need. This is a manual that not only systematizes knowledge, but also inspires further study of mathematics, making this path interesting and effective.