Differential Equations
Introduction

Basic Conceptions

First-Order Differential Equations

Directly Integrable Equations
  Motion of a Body - Problem 1
  Motion of a Body - Problem 2
  Motion of a Body - Problem 3
  The Spontaneous Radioactive of Substance

Separable Equations
  Motion of Particals in Viscous Fluid
  Newton's Model of Cooling
  Model of Population

Homogeneous Equations

Linear Equations

Bernoulli Equations

Exact Differential Equations

Differential Equations of Higher Orders

Basic Conceptions
Equations of Special Kinds

Some Graphic Illustrations using MATLAB

Clich here to go to Indefinite Inegrals


Clich here to go to Definite Inegrals




Homogeneous Equations
Real-Life Problems:   Motion of a Body - Problem 1 » Motion of a Body - Problem 2 » Motion of a Body - Problem 3 » The Spontaneous Radioactive of Substance » Motion of Particals in Viscous Fluid » Newton's Model of Cooling » Model of Population

A homogeneous differential equation can be represented by the following form:

.

The right-hand side of the equation suggests the substitution

,

which implies

The latest equation is a separable equation.
Therefore,


Examples
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© 2004-2010 by Norbert Grunwald and Valery Konev