Chapter 17 · Ordinary Differential Equations
17.07
Undetermined Coefficients
For ay'' + by' + cy = g(x) with g a polynomial, exponential, sine or cosine, guess a particular solution of the same shape, solve for its coefficients, and add the homogeneous solution.
About 16 minutes
You'll learn to
- →Write the general solution as y_h + y_p
- →Choose the right form of guess for y_p
- →Fix a guess that overlaps the homogeneous solution
- →Recognize resonance