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Chapter 3
Systems of ODEs

  2.3.2 Constant coefficient higher order ODEs
  2.3.3 Exercises
 2.4 Mechanical vibrations
  2.4.1 Some examples
  2.4.2 Free undamped motion
  2.4.3 Free damped motion
  2.4.4 Exercises
 2.5 Nonhomogeneous equations
  2.5.1 Solving nonhomogeneous equations
  2.5.2 Undetermined coefficients
  2.5.3 Variation of parameters
  2.5.4 Exercises
 2.6 Forced oscillations and resonance
  2.6.1 Undamped forced motion and resonance
  2.6.2 Damped forced motion and practical resonance
  2.6.3 Exercises