Differential and difference equations. What phenomena do they describe and how to solve them

The study manual contains models of physics, mechanics, chemistry, biology, ecology, economy, sociology, meteorology, electrical engineering, applications to probability theory, game theory, computational mathematics, and the like, based on differential and difference equations. This practical guide to the joint use of analytical and computing approaches also contains tasks of varying complexity for home and control works, seminars, workshops, examinations and coursework.
The book is written on the basis of the course, which by the author for many years taught at the department of applied mathematics HSE, and addressed to students and graduate students of natural scientific specialties