Question

The concepts on second order partial differential equations.

Answer 1

That's kind of vague, do you have any examples we could go off of here?

Answer 2

Let's begin with the basic one. for instance y" +ay'+by=0

Answer 3

I can barely see that, and I have a huge screen lol
This?\[y^{"}+ay{'}+by=0\]

Answer 4

That's a quotation mark (or double apostrophe) btw

Answer 5

Let's begin with the basic one. for instance y" +ay'+by=0

Answer 6

Yes that's double apostrophe

Answer 7

Eh? Why'd you post the "let's begin with" twice? o_o