I just posted a visualization of multiplication of the integers modulo n http://math.stackexchange.com/questions/733754/visually-stunning-math-concepts-which-ar

I just posted a visualization of multiplication of the integers modulo n http://math.stackexchange.com/questions/733754/visually-stunning-math-concepts-which-are-easy-to-explain/743542#743542 http://math.stackexchange.com/questions/733754/visually-stun... to this question. This visualization makes it easy to notice the factors of n and the symmetry of multiplication.