I have a PhD in math and I TA'ed linear algebra as a graduate student. That said, it I am not certain what you are looking for. If you are looking for help with homework, I can do that, quickly. If your project is more involved (like implementing 3D graphics in a game), I may still be able to help you, but it may take more time. Feel free to contact me with the specifics of what you would like to do.