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Flashcards in CP2 Deck (12)
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1

2cos theta

z + 1/z

2

2isin theta

z-1/z

3

2cosn theta

z ^n + 1/z^n

4

2isinn theta

z^n-1/z^n

5

eulers relation

e^itheta = cos theta + isin theta

6

exponential form

re ^i theta
r = modulus
theta = argument

7

argument in positive quadrant

theta

8

argument in positive x negative y quadrant

-theta

9

argument in negative x positive y quadrant

pi - theta

10

argument in negative x negative y quadrant

-(pi-theta)

11

sum to infinity of wz^r

w/(1-z)

12

sum to (n-1) of wz^r

w(z^n-1) / z-1