Lecture notes for a first course in differential equations, MAT-22B at UC Davis.
Lecture 1 - Terminology and the Integrating Factor
Lecture 2 - Euler’s Method and the Characteristic Equation
Lecture 3 - Homogeneous Linear Equations
Lecture 4 - Repeated Roots and Reduction of Order
Lecture 5 - The Method of Undetermined Coefficients
Lecture 6 - Variation of Parameters
Lecture 7 - The Laplace Transform
Lecture 8 - Initial Value Problems with the Laplace Transform