**Preface to "Applied and Computational Mathematics for Digital Environments"**

Currently, digitalization and digital transformation are actively expanding into various areas of human activity, and researchers are identifying urgent problems and offering new solutions for digital environments in industry, economics, business, medicine, ecology, education, etc.

Undeniably, when we seek to solve problems that challenge the global community, the advanced principles and technologies of applied and computational mathematics must be involved. The application of such principles and technologies will ensure the study and modeling of various phenomena in the real world using intelligent software, hardware platforms, and corresponding modules.

The present book contains the 11 papers that were accepted for publication among the 12 manuscripts that were submitted to the Special Issue "Applied and Computational Mathematics for Digital Environments" of the MDPI "*Mathematics*" journal. The 11 papers, which appear in the present book in the series that they have been published in, Volumes 9 (2021), 10 (2022), and 11 (2023) of the journal, cover a wide range of topics connected to the principles and technologies of applied and computational mathematics, which can be applied to solve various practical problems in digital environments.

The topics of interest include, among others, scientific research, applied tasks, and problems in the following areas:


I hope that this book will be useful to those who are interested in the real-world applications of applied and computational mathematics for digital environments in terms of solving actual, practical problems in all spheres of human life and activity.

As the Guest Editor of the Special Issue "Applied and Computational Mathematics for Digital Environments" of the MDPI "*Mathematics*" journal, I am grateful to the contributing authors, the reviewers of this paper for their valuable comments, which greatly improved the quality of the submitted papers, and the administrative staff of MDPI publications for the support toward completing this project. Furthermore, special thanks are due to the Managing Editor of the Special Issue, Dr. Syna Mu, for his excellent collaboration, valuable assistance, and support.

> **Liliya Demidova** *Editor*
