The Mathcad System . Handbook" by B. P. Diaconova is an indispensable resource for all who seek to better understand and effectively use the powerful mathematical modeling and computing tool that has become a standard in the engineering and scientific environment. Mathcad is not just a program, but an entire ecosystem for solving complex mathematical problems, and in this guide, the author offers readers a detailed guide to all aspects of working with it. Dyakonov, known for his work in mathematical modeling and computing, created this book for students, engineers, scientists and anyone interested in modern methods of data processing and analysis. If you are a technical student, graduate student or practicing engineer, then this guide will be your faithful assistant in mastering Mathcad. Even if you are new to the field, the book will help you quickly delve into the basic principles and capabilities of the program. The guide covers a wide range of topics, ranging from the basics of the interface to more complex functions, such as creating graphs, working with matrices and solving differential equations. Dyakonov does not just list Mathcad functions, he explains in detail how to use them in real-world tasks, which makes the book especially valuable for practical application. The reader will find many examples here that illustrate how Mathcad can be used to solve specific engineering and scientific problems. One of the key topics raised in the book is the integration of Mathcad with other software products and systems. In today's world, where data comes from multiple sources, the ability to effectively combine different tools is becoming critical. Diaconov shares his knowledge of how Mathcad can work in conjunction with other programs, such as MATLAB or Excel, which opens up new horizons for data analysis and visualization. The author's style is clear and accessible, which makes the book not only useful, but also pleasant to read. Diaconov uses live language and visual examples, which allows the reader to easily absorb the material. His experience and deep knowledge in mathematics and programming make this book an authoritative source of information. If you are looking for similar works, then you may be interested in books on mathematical modeling, such as "Mathematical Modeling. Basics and Methods" or "MATLAB for Engineers". These books will also help you develop the skills you need to work with modern computing tools. "Mathcad System. Handbook” is not just a book, but a whole training course that can become the basis for your professional growth. It will help you not only to master Mathcad, but also to learn to think analytically, which is an important skill in any technical field. If you want to improve your skills, improve your skills in mathematical modeling or just learn more about the capabilities of Mathcad, this book will be your reliable companion along the way. Do not miss the opportunity to take a step towards new knowledge and professional achievements with the “Mathcad System. Handbook" from B. P. Deacons!