  The object of this laboratory work: to explore dependence mass point
oscillatory motion parameters in the following cases:
  - without resistance (free oscillations);
  - the resistance force is proportional to the velocity vector;
  - the resistance force is proportional to the velocity squared.
  Used equipment: the work have doing on a personal computer. The oscillatory
motion simulation is carried out by the numerical solution of system of
differential equations. This equations describe a motion of a particle under an
elastic force action and exterior forces (resistance force) with initial values
and parameters being entered during the dialogue with the computer.
