I'm planning a linear algebra course for computer science freshmen. Do you have any good textbook to recommend?
I think that Linear Algebra Done Wrong by Sergei Treil is quite nice (of course, every book has its quirks).
I hope this helps $\ddot\smile$
I would recommend Linear Algebra by Hoffman and Kunze. You can have a look here. It is probably more formal (it is for mathematicians) than needed for computer science, but if you are interested, you definitely benefit from it.