If anybody wants help with the “complex number” thing there are good tutorials at http://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/ and the follow-on at http://betterexplained.com/articles/intuitive-arithmetic-with-complex-numbers/
If anybody wants help with the “complex number” thing there are good tutorials at http://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/ and the follow-on at http://betterexplained.com/articles/intuitive-arithmetic-with-complex-numbers/