<p>How come I can't find any textbook for Math 54 Linear Algebra & Diff online? The book store price is something like $120 which I think it's too expensive. But how come there is no used even new book of this course on-line? Does anyone have a used one need to sell?</p>
<p>The textbook used for this class is a Berkeley custom edition. It is a combination of chapters from 2 textbooks: Lay’s Linear Algebra and its Applications and Nagle, Saff, Snider’s Fundamentals of Differential Eqns and Boundary Value Problems. The school bookstore sells it for about 70 dollars new which is probably much less than what you would pay for both books individually. Since it is custom edition for our school, I doubt you would be able to find a copy of it online. Alternatively, you can buy used copies of the 2 books online but like I mentioned before, I don’t think you will be able to save much by doing so.</p>
<p>Oh I c. That makes sense. Thank you copperback. I guess I will just buy it in the book store. BTW, copperback, are you taking this class this semster?</p>