I have lots of graphics and flash work on them (it was actually fun and tiring at the same time).
But as you all know, I make the odd mistake ... so I would value any comments or corrections.
Had a quick glance over, and all the pages look great! They make me wish I was learning all this stuff again...looks pretty fun the way you've set it out.
A tiny, tiny, tiny, picky thing to change:
On the transformations page, under resizing.
'The shape become bigger or smaller.' Becomes?
Great! That's what I want. Be more picky.
Oh, and in the future I hope to do pages on calculus, matrix algebra and so on. One day.