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Argument of Complex Numbers

  • 26-04-2012 12:52PM
    #1
    IsThisIt???
    Registered Users, Registered Users 2 Posts: 412 ✭✭


    Having trouble rapping my head around the angle of a complex number in different quadrants, especially the 4th quadrant.

    Take for example z=1-i
    When I calculate arctan(-1/1) I get -45deg.
    What I am unsure of is what I do with this answer.
    Do I add it to 270deg, which will give 225, which would lie in the 3rd quad?
    Do I add it to 360deg?

    If anyone can explain this to me or link me to a place that can it would be much appreciated.


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