Do you have any recommendations of books or websites that would teach me mathematical notation. As a developer I work on a wide range of projects from .NET/SQL Server stuff
It sounds like a lot of your applications are in computer graphics.
One of the classic textbooks is Foley and Van Dam. You might consider getting a copy. It may not slow down to explain matrices (see the link I gave for a page on coordinate transforms), but there's enough context there that you can probably do just fine if you either do some basic searches on some of the linear algebra concepts, or check out a linear algebra book from the library.
It doesn't sound like you'd benefit a lot from a full "digestion" of a linear algebra course (which goes into eigenvalues, matrix factoring, & other stuff). I'd just take one concept at a time as it comes up. You can learn quite a bit from slow osmosis.