The obligatory, if you're still scratching your head thinking about complex numbers: http://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-n

The obligatory, if you're still scratching your head thinking about complex numbers: http://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/ http://betterexplained.com/articles/a-visual-intuitive-guide...