Differential equations

Chapter 1. First order ODEs

Chapter 2. Second-order linear ODEs

Chapter 3. Higher-order linear ODEs

Chapter 4. Systems of ODEs. Phase plane. Qualitative methods

Chapter 5. Series solutions of ODEs. Special functions

Chapter 6. Laplace transform

Chapter 7. Fourier analysis

Chapter 8. Partial Differential Equations

Solved problems

Minimal Latex source for problems

Paul's online notes