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Cauchy's Integral Formula
Cauchy's Integral Formula
📜
The statement of the theorem
If
f
f
f
is holomorphic in a domain containing a closed disk and
a
a
a
is in the interior, then
f
(
a
)
=
1
2
π
i
∮
f
(
z
)
z
−
a
d
z
f(a) = \frac{1}{2\pi i} \oint \frac{f(z)}{z-a} dz
f
(
a
)
=
2
πi
1
∮
z
−
a
f
(
z
)
d
z
.
Source: Wikipedia