Second Order DE's

Question

Im currently in a Calc II class at CWRU. I missed a day of class covering Second Order DE's. This topic is not covered in the textbook. Could someone direct me towards a introduction or tutorial to this topic. Here is an example of the type we are covering. 4y'+ 4y" + y = 0 ; y(0)= -12 , y'(0)= 1

Answer 1

Paul's Online Math Notes is good.

Answer 2

MIT Open lectures would have some nice notes

Look here chapter 33, or here Lecture 9, or do a search on your own.

Answer 3

You might also try some of my notes, in particular Second Order Linear Equations and Constant-Coefficient Equations

Answer 4

Here is also a pretty good video lecturer's on various topics.

PatrickJMT

and

DrChrisTisdell

Hope this helps out.