The book "Calculation-graphic works on variational calculus", created by the team of authors, is a unique manual that immerses the reader in the world of variational calculus - one of the most interesting and complex branches of mathematical analysis. This publication will become an indispensable assistant for students, graduate students and teachers, as well as for anyone interested in mathematics and its applied aspects. Variational calculus is a field of mathematics that studies the extreme properties of functionals, and this book offers readers not only theoretical foundations, but also practical problems that will help consolidate the knowledge gained. It presents a variety of computational and graphic works that are aimed at developing skills in solving problems related to finding extremities of functionals. Each work is designed in accordance with modern requirements and includes detailed explanations, which makes the learning process more accessible and understandable. The book will be especially useful for students of mathematical and engineering specialties, as well as for those who study physics and economics. It is suitable for both beginners and more experienced readers who want to deepen their knowledge in this area. If you are interested in such topics as optimization, mathematical modeling or even theoretical physics, then this publication will be a real find for you. The topics raised in the book cover a wide range of issues related to variational calculus. Readers will be able to get acquainted with the basics of the theory, as well as with practical aspects, such as the application of variational calculus in various fields of science and technology. The book focuses on the importance of mathematical analysis in real problems, which makes it especially relevant in the modern world, where mathematics plays a key role in various fields. The style of the authors is clear and accessible, which allows readers to easily assimilate complex concepts. The team of authors includes experienced teachers and practitioners who know how to convey the material to the audience. Their approach to the presentation of material makes the book not only a textbook, but also an interesting reading for those who want to expand their horizons in mathematics. If you are looking for literature that will help you understand variational calculus, as well as develop practical problem-solving skills, then "Calculating-graphical works on variational calculus" is exactly what you need. This book will be your reliable companion in the world of mathematics, providing you with all the necessary tools for the successful study and application of calculus. Do not miss the opportunity to immerse yourself in the fascinating world of mathematical research and discover new horizons of knowledge with this wonderful guide The book “Calculating Graphical Works on Variational Calculus” is your key to understanding complex mathematical concepts and their practical application.