Math tutorials and resources

Outside of Khan academy are there any other really good online resources for basic match concepts useful to TD artists? No advanced calculus, just a thorough refresher of the basics, ie vectors and vector addition, matrices, trigonometry, etc.

Second this!

I am constantly searching for a place where I can learn programming centric math topics, as I still struggle to parse/breakdown the traditional math notation into something I can use. Most of what I find tends to come from patchwork stack overflow places, often times the marked answer isn’t even what does it, it’s someone comment down below or a second best answer etc.

Would be interesting to hear what others have gone to for resources.

I have stumbled into one really awesome page, it’s a bit old (2002) but a lot of the math hasn’t changed and it explains a lot of matrix and quaternion stuff from a programming standpoint which is nice:
http://www.opengl-tutorial.org/assets/faq_quaternions/index.html