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Complex number angle question

  • Thread starter roz77
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  • #1
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I have two complex numbers, let's call them A and B. A=2exp[-ikz], and B=2iexp[-ikz]. I have to figure out the angle of these two numbers, and I am just completely drawing a blank on B. I know that the angle of A is just -kz, but I can't remember how to figure it out for part B. I can't remember what that i in front does.
 

Answers and Replies

  • #2
tiny-tim
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hi roz77! :smile:

hint: i = ei(what?) :wink:
 
  • #3
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k and z are just random variables that were in the problem. I know that when its exp[ikz], the angle is kz, but I'm not sure when it's iexp[ikz].
 
  • #4
tiny-tim
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no, i mean solve i = ei(something) :smile:
 
  • #5
hunt_mat
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[tex]
i=e^{\frac{\pi i}{2}}
[/tex]
 
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