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Winter 2017

Feng Xu

MATH 46

Introduction. What is Ordinary Differential Equations? How does it work?

These notes cover finding solving for the general solution the order of a differential, whether an equation is separable, homogeneous equation, Initial value problem, an exact problem,

These notes cover some basic concepts that you should know as well as examples of how to spot an exact equation as well as a homogenous one.

Classification of 1st order ODE: Separable, Linear, Exact

Solving separable equations and linear equations

Solving Exact equations Solving Homogeneous equations

Here's the solution of my midterm practice Also, I make a summary of what we are going to do in the midterm.

Linear 2nd order ODE

Solve Linear 2nd order ODE

Chp.11, The Method of Undetermined

Variation of Parameters

Spring 2020

Li-Wei Chen