Differential Equations (Babets D.V.)

Differential equations arise in the study of various problems in science, engineering, economics. In the language of differential equations are formulated the most important laws of nature. In the process of solving various problems is not always possible to establish a direct relationship between the quantities that describe the process. However, in most cases, we can establish a relationship between quantities and their velocities of change relative to other variable quantities. This means that will be found the equations in which unknowns are included under the sign of the derivative. These equations are called by Differential Equations