So I’ve decided that the differential equations notes are done.  Well at least my first go at them.  Until I teach this or similar class again I am unlikely to work on them heavily, so I guess that counts.  Plus I think they are reasonably mistake free and readable.  In some sense I bet they are more readable than Edwards and Penney which they are supposed to “replace.”  Anyway.  See

http://www.jirka.org/diffyqs/

I did change the site.  I guess using uiuc might be bad since I will move from here next year, but jirka.org will stay around.  I also added the book to lulu so that you can buy a paperback copy of it.  Essentially it’s a cheaper way to print it.  The campus note printing service would charge you over $20 to duplicate and bind this, while here you get a nice bound copy for $14 and I get $5 of that.  Of course you can just download and print the thing with me getting nothing, but every time you do that, god kills a kitten.