##  [Cauchy's Integral Formula](/cauchys-integral-formula) 

  ##  [Cauchy's Integral Formula](https://natural.quantumdictionary.io/cauchys-integral-formula-0) 

  

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**Natural & Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

An identity in complex analysis that expresses the value of a holomorphic function (and its derivatives) at an interior point of a simple closed curve as a contour integral of the function over that curve.