The book "Ensuring the reliability and reliability of computer calculations" by Yuri Petrovich Petrov is an important and relevant work that will become an indispensable assistant for specialists in the field of computer engineering, programming and scientific research. With the rapid development of technology and increasing dependence on computer systems, the issue of reliability and reliability of calculations becomes especially relevant. Petrov, with deep knowledge and experience in this field, offers readers a unique view on this problem, which makes his work not only useful, but also necessary for all who strive for perfection in their professional activities. The book covers a wide range of topics related to ensuring the reliability of computer calculations. The author examines in detail the methods and approaches that allow minimizing errors and improving the accuracy of calculations. An important aspect of the work is that Petrov not only shares theoretical knowledge, but also offers practical recommendations that can be applied in real conditions. Readers will be able to learn about modern algorithms, tools and technologies that help verify the results of calculations and ensure their reliability. This book will be of interest not only to professional programmers and engineers, but also to students, graduate students, as well as anyone interested in computational mathematics and programming. If you want to deepen your knowledge in the field of computer calculations, improve the quality of your work or simply expand your horizons, “Ensuring the reliability and reliability of computer calculations” will be a real find for you. The topics raised in the book cover not only technical aspects, but also philosophical issues related to trust in technology. Petrov raises important questions about how modern computing systems affect decision-making in various areas of life, from science to business. He emphasizes that errors in calculations can have serious consequences, and calls on readers to take responsibility in the use of computer technology. The style of Yuri Petrovich Petrov is distinguished by clarity and accessibility of presentation, which allows even complex concepts to be perceived easily and with interest. His previous work, such as "Algorithms and Data Structures" and "