complex numbers

[dervast]

Hi i need some good articles about complex number and more especially with complex envelopes...Do u have anything in mind? Thx a lot

[amcavoy]

I don't know which level you need, but here is a very basic tutorial on complex numbers:

http://tutorial.math.lamar.edu/AllBrowsers/Complex/ComplexNumbers.asp

[roger]

here is something I was reading the other day :

www.maths.bris.ac.uk/~maxmg/maths/introductory/complex.html