推 jacky7987 :root-pole counting formula 10/24 10:35
Let f(z)=z^n*g(z),where n is a positive integer,
g(z) is entire, and g(z)不等於0 for all z.Let C
be a circle with center at the origin.
f'(z)
Evaluate ∫------dz
c f(z)
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